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The Theories and Behavior of Gas

Updated on February 21, 2017
Gas is one of the three forms of matter. Every known    substance is either a solid, liquid or a gas. These forms differ in the    way they fill space and change shape. A gas, such as air has      neither a fixed shape nor a fixed volume and has weig
Gas is one of the three forms of matter. Every known substance is either a solid, liquid or a gas. These forms differ in the way they fill space and change shape. A gas, such as air has neither a fixed shape nor a fixed volume and has weig

Objectives:

Upon completion of this lesson, the students should be able to:

  1. become familiar with the basic characteristics of gases
  2. understand the postulates of the Kinetic Molecular Theory as applied to gases
  3. explain how the Kinetic Molecular Theory accounts for the properties of gases
  4. apply the relations of volume, temperature, pressure, and mass to solve problems on gases

Introduction

What makes a gas different from liquid and a solid?

Gas is one of the three forms of matter. Every known substance is either a solid, liquid or a gas. These forms differ in the way they fill space and change shape. A gas, such as air has neither a fixed shape nor a fixed volume and has weight.

Properties of Gases

  1. Most gases exist as molecules (in case of inert gases as individual atoms).
  2. The molecules of gases are randomly distributed and are far apart.
    • Gases can be easily compressed, the molecules can be forced to be closed together resulting to lesser space between them.
    • The volume or space occupied by the molecules themselves is negligible as compared to the total volume of the container so that the volume of the container can be taken as the volume of the gas.
    • Gases have lower densities than solids and liquids.
    • The attractive forces between molecules (intermolecular) are negligible.

3. Most substances that are gaseous at normal conditions have low molecular mass.

Measurable Properties of Gases

Property
Symbol
Common Units
Pressure
P
torr, mm Hg, cm Hg, atm
Volume
V
ml, i, cm, m
Temperature
T
k (Kelvin)
Amount of gas
n
mol
Density
d
g/l

Note:

1 atm = 1 atmosphere = 760 torr = 760 mm = 76 m Hg

Temperature is always in Kelvin. At absolute zero (0K) molecules stop moving entirely, the gas is as cold as anything can get.

Standard Temperature and Pressure (STP) or Standard Conditions (SC):

T = 0 0C = 273 0K

P = 1 atm or its equivalents

Postulates of the Kinetic Molecular Theory

The behavior of gases is explained by what scientists call the Kinetic Molecular Theory. According to this theory, all matter is made of constantly moving atoms or molecules. Because of their mass and velocity, they possess kinetic energy, (K.E. = 1/2mv). The molecules collide with one another and with the sides of the container. There is no kinetic energy lost during collisions inspite of the transfer of energy from one molecule to another. At any given instant, the molecule do not have the same kinetic energy. The average kinetic energy of the molecule is directly proportional to the absolute temperature. At any given temperature, the average kinetic energy is the same for the molecules of all gases.

Kinetic Molecular Theory
Kinetic Molecular Theory

Gas Laws

There are several laws that explain appropriately how the pressure, temperature, volume and the number of particles in the container of gas are related.

Boyle’s Law

In 1662, Robert Boyle, an Irish chemist explained the relationship between the volume and pressure of a sample of a gas. According to him, if, at a given temperature, a gas is compressed, the volume of the gas will decrease and through careful experiments he found that at a given temperature, the volume occupied by a gas is inversely proportional to the pressure. This is known as Boyle’s Law.

Equation:

P = k 1/v

Where:

P = pressure of a gas sample

V = volume of a gas sample

K = a constant

Therefore: PV = k

At a given temperature, the product of the pressure and volume of a gas must be constant. If the pressure is increased, the volume must decrease to maintain the constant product. For a given gas sample to be studied under different pressures, the following expressions must hold:

P1V1 = P2V2

Where:

P1 = original pressure of a gas sample

V1 = original volume of the sample

P2 = new pressure of a gas sample

V2 = new volume of the sample

Example:

A sample of a gas entrapped in a cylinder with a movable piston occupies a volume of 720 ml under a pressure of 0.375 atm. What volume will the gas occupy under a pressure of 1.000 atm when the temperature remains constant?

V1 = 720 ml P1 = 0.375 atm

V2 = ? P2 = 1.000 atm

V2 = 360 ml x 0.375 atm/1.000 atm

V = 0.27 ml

Boyle's Law states that at a given temperature, the volume  occupied by a gas is inversely proportional to the pressure.
Boyle's Law states that at a given temperature, the volume occupied by a gas is inversely proportional to the pressure.

Charles' Law

The French chemist Jacques Alexandre Cesar Charles, in studying the relationship between the volume of a gas and its temperature, discovered that the volume of a gas increases by 1/273 for its degree centigrade its temperature is increased. From this he reasoned that a temperature of -273 degrees Celsius, was the lowest possible attainable temperature. He called this temperature absolute temperature, and established the absolute temperature scale which is related to the centigrade scale as:

A = 0C + 273

A = 0F + 273

These expressions are used in finding the absolute temperature when the centigrade or Fahrenheit temperatures are known. Charle’s Law states that at a given pressure, the volume occupied by a gas is directly proportional to the absolute temperature of the gas.

Equation:

V = K T

Where:

V = volume of the gas sample

T = absolute temperature of the gas sample

K = a constant

Therefore:

V/T = k

For a given sample, if the temperature is changed, this ratio must remain constant, so the volume must change in order to maintain the constant ratio. The ratio at a new temperature must be the same as the ratio at the original temperature, so:

V1 = V2 /T1 ­= T2

V1T2 = V2T1

Where:

V1 = original volume of sample of gas

T1 = original absolute temperature

V2 = new volume of the sample

T2 = new absolute temperature of the sample

Example:

A given mass of gas has a volume of 150 ml at 25 0C. What volume will the sample of gas occupy at 45 0C, when the pressure is held constant?

V1 = 150 ml T1 = 25 + 273 = 298 0K

V2 = ? T2= 45 + 273 = 318 0K

V2 = 150 ml x 318 0K/2980K

V2 = 160 ml

Charles'  Law states that at a given pressure, the volume occupied by a gas is directly proportional to the absolute   temperature of the gas.
Charles' Law states that at a given pressure, the volume occupied by a gas is directly proportional to the absolute temperature of the gas.

Gay-Lussac’s Law

Gay-Lussac’s Law states that the pressure of a certain mass of gas is directly proportional to its absolute temperature at constant volume.

P1 /T1 = P2/T2

Example:

An LPG tank registers a pressure of 120 atm at a temperature of 27 0C. If the tank is placed in an air conditioned compartment and cooled to 10 0C, what will be the new pressure inside the tank?

P1 = 120 atm T1 = 27 + 273 = 300 0K

P2 = ? T2 = 10 + 273 = 283 0K

P2 = 120 atm x 283 0K /2990K

P2 = 113.6 atm

Gay-Lussac’s Law states that the pressure of a certain mass of   gas is directly proportional to its absolute temperature at constant volume.
Gay-Lussac’s Law states that the pressure of a certain mass of gas is directly proportional to its absolute temperature at constant volume.

Combined Gas Law

The Combined Gas Law (Combination of Boyle’s Law and Charles Law) states that the volume of a certain mass of gas is inversely proportional to its pressure and directly proportional to its absolute temperature.

A gas sample occupies 250mm at 27 0C, and 780 mm pressure. Find its volume at 0 0C and 760mm pressure.

T1 = 270C + 273 = 300 0A

T2 = 00C + 273 = 273 0A

V2 = 250 mm x 2730A/3000A x 780 mm/760 mm = 234 mm

The Combined Gas Law (Combination of Boyle’s Law and Charle’s Law) states that the volume of a certain mass of gas is inversely proportional to its pressure and directly proportional to its absolute temperature.
The Combined Gas Law (Combination of Boyle’s Law and Charle’s Law) states that the volume of a certain mass of gas is inversely proportional to its pressure and directly proportional to its absolute temperature.

Ideal Gas Law

An ideal gas is one which follows the gas law perfectly. Such a gas is non-existent, for no known gas obeys the gas laws at all possible temperatures. There are two principal reasons why real gases do not behave as ideal gases;

* The molecules of a real gas has mass, or weight, and the matter thus contained in them cannot be destroyed.

* The molecules of a real gas occupy space, and thus can be compressed only so far. Once the limit of compression has been reached, neither increased pressure nor cooling can further reduce the volume of gas.

In other words, a gas would behave as an ideal gas only if its molecules were true mathematical points, if they possessed neither weight nor dimensions. However, at the ordinary temperatures and pressures used in industry or in the laboratory, molecules of real gases are so small, weigh so little, and are so widely separated by empty space, they follow the gas laws so closely that any deviations from these laws are insignificant. Nevertheless, we have to consider that the gas laws are not strictly accurate, and results obtained from them are really close approximations.

Ideal Gas Law
Ideal Gas Law

Graham's Law of Diffusion

In 1881, Thomas Graham, a Scottish scientist discovered the Graham’s Law of Diffusion. A gas that has a high density diffuses more slowly than a gas with a lower density. Graham’s Law of Diffusion states that the rates of diffusion of two gases are inversely proportional to the square roots of their densities, providing the temperature and pressure are the same for the two gases.

Self-Progress Test

Solve the following:

  1. The volume of a sample hydrogen is 1.63 liters at -10 0C. Find the volume at 150 0C, assuming constant pressure.
  2. The pressure of air in a sealed flask is 760 mm at 27 0C. Find the increase in pressure if the gas is heated to 177 0C.
  3. A gas has a volume of 500 milliliters when a pressure equivalent to 760 millimeters of mercury is exerted upon it. Calculate the volume if the pressure is reduced to 730 millimeters.
  4. The volume and pressure of a gas are 850 milliliters and 70.0 mm respectively. Find the increase in pressure required to compress the gas to 720 milliliters.
  5. Compute the volume of oxygen at STP if the volume of the gas is 450 milliliters when the temperature is 23 0C and the pressure is 730 milliliters.

Gases

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    • profile image

      Teddy Gullem 3 weeks ago

      The Behavior of gases is explained by what scientists call the Kinetic Molecular Theory.The Kinetic Molecular Theory states that gas particles are in constant motion and exhibit perfectly elastic collisions. Kinetic Molecular Theory can be used to explain both Charles' and Boyle's Laws. The average kinetic energy of a collection of gas particles is directly proportional to absolute temperature only~ Boyle's Law

    • Pauline Toribio profile image

      Pauline Louise Toribio 4 weeks ago from Baliuag, Bulacan

      TORIBIO, PAULINE LOUISE A.

      BSN I

      Gas is a form of matter which can be easily conpressed and has lower density than solid and liquid. Gas such as oxygen is essential to life that's why it is important to know about gases. This topic explains different gas laws, they explained how pressure, temperature and volume is related to each other.

    • Camille San Mateo profile image

      Camille San Mateo 4 weeks ago

      SAN MATEO, CAMILLE C.

      BSN-1

      Gases are invisible but play a visible role in our everyday lives. It has neither fixed shape nor a fixed volume. Most of the gases exist as molecular and randomly distributed and are far apart according to kinetic molecular theory. All matter is made of constant moving atoms or molecules because of their mass and velocity they possess kinetic energy.

    • profile image

      Gil Joseph R. Calderon 6 weeks ago

      Gases have the lowest density of the three matter, are highly compressible, and fill their containers completely.

      There are several Gas laws includes Boyle’s Law, Gay Lussac’s, Combined Gas Law, Idea Gas law, Graham’s Law of diffusion.

      Kinetic molecular theory is based on the following postulates, or assumptions. Gases are composed of a large number of particles that behave like hard, spherical objects in a state of constant, random motion. These particles move in a straight line until they collide with another particle or the walls of the container. These particles are much smaller than the distance between particles. Most of the volume of a gas is therefore empty space. There is no force of attraction between gas particles or between the particles and the walls of the container. Collisions between gas particles or collisions with the walls of the container are perfectly elastic. None of the energy of a gas particle is lost when it collides with another particle or with the walls of the container. The average kinetic energy of a collection of gas particles depends on the temperature of the gas and nothing else.

    • davejshv profile image

      Dave Joshua Villangca 6 weeks ago

      VILLANGCA, DAVE JOSHUA B.

      BSN-I

      Gas is one of the three forms of matter. It doesn't have a fixed shape, a fixed volume and has mass. The molecules of gases are randomly distributed and are far apart. Gases have lower densities than solid and liquids. The Measureable Properties of Gases are Pressure, volume, temperature, Amount of Gas, and Density.

      The behavior of gases is explained through Kinetic Molecular Theory which means that all matter is made up of constantly moving atoms or molecules. The formula for Kinetic Energy is K.E= 1/2mv. The different Gas laws involved Boyle's Law, Charle's Law, Gay-Lussac's Law, Combined Gas Law, Ideal Gas Law, and Graham's Law of Diffusion.

      Gas, in the form of oxygen, is the most important gas in the human body. When the oxygen in our body decreases, we could get Hypoxemia which is a dangerous condition. Without oxygen, our brain, heart, lungs, and other organs will not function well and can lead us to death.

    • Bianca Bernardo profile image

      Bianca Bernardo 6 weeks ago

      The kinetic theory of gases is a topic that can explain many everyday observations. The kinetic theory of gases (also known as kinetic-molecular theory) is a law that explains the behavior of a hypothetical ideal gas. According to this theory, gases are made up of tiny particles in random, straight line motion. They move rapidly and continuously and make collisions with each other and the walls. This was the first theory to describe gas pressure in terms of collisions with the walls of the container, rather than from static forces that push the molecules apart. Kinetic theory also explains how the different sizes of the particles in a gas can give them different, individual speeds.

      Different Gas Laws include Boyle's Law, Charle's Law, Pressures Law, Avogadro and Graham's Law

    • profile image

      RUSSELL BERNARDINO BSTM4 6 weeks ago

      For a given gas, the specification of only two properties—usually chosen to be temperature and density or temperature and pressure—fixes all the others. Thus, if the temperature and density of carbon dioxide are specified, the gas can have only one possible pressure, one internal energy, one viscosity, and so on. In order to determine the values of these other properties, they must either be measured or calculated from the known properties of the molecules themselves. Such calculations are the ultimate goal of statistical mechanics and kinetic theory, and dilute gases constitute the case for which the most progress toward that goal has been made.

      Compared to the numbers of molecules involved, there are only a few properties of gases that warrant attention here, namely, pressure, density, temperature, internal energy, viscosity, heat conductivity, and diffusivity.

    • profile image

      Christian Paul V. Ogorida BSCE 6 weeks ago

      Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma). A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g. oxygen), or compound molecules made from a variety of atoms (e.g. carbon dioxide). A gas mixture would contain a variety of pure gases much like the air. What distinguishes a gas from liquids and solids is the vast separation of the individual gas particles. This separation usually makes a colorless gas invisible to the human observer. The interaction of gas particles in the presence of electric and gravitational fields are considered negligible as indicated by the constant velocity vectors in the image. One type of commonly known gas is steam.

      The gaseous state of matter is found between the liquid and plasma states,[1] the latter of which provides the upper temperature boundary for gases. Bounding the lower end of the temperature scale lie degenerative quantum gases[2] which are gaining increasing attention.[3] High-density atomic gases super cooled to incredibly low temperatures are classified by their statistical behavior as either a Bose gas or a Fermi gas. For a comprehensive listing of these exotic states of matter see list of states of matter.

    • profile image

      Jenica M. De Leon 7 months ago

      De Leon, Jenica M. BSPSY-2 Gases unlike from what we have learned in solids and liquids doesnt have a definite shape and volume. The particles of gas move very fast and they collide with each other often thats why they mix together easily. Their particles move in a rotational manner and the forces between them are so weak since they are far from each other. Gases have several laws that we can learn from this article. There's what we call the Boyle's Law, Charles's..the combined gas law of the two, Gay-Lusaac's and the ideal gas that explains more about how interesting it can be to study gaseous state.

    • profile image

      Jenica De Leon 7 months ago

      De Leon, Jenica M. BSPSY-2 Gas as we all know does not have a definite shape and volume unlike the solid and liquid. Gas particles move very fast and collide with each other often and that is the reason why gases mix together easily. Their particles move in a rotational manner and the forces between them are so weak since they are far from each other. There are several gas laws too like Boyle's Law, Charle's, Combined gas and the ideal gas.

    • profile image

      rkyled 7 months ago

      REYMART KYLE D. DABBAY

      BS PSY II

      gases are (relatively) easy to study. We could fill up a balloon or a bladder (including a Montgolfier balloon); we could measure the volume; we could (sometimes) measure the mass; we could certainly measure the temperature. Early chemists and physicists found that by studying three macroscopic variables, temperature, pressure, and volume, (all of which are measurable!) that a kinetic molecular theory of gases could be developed. This was based on experiment and not on intuition. Using these experimental discoveries, chemists and physicists could develop a pretty shrewd picture of what molecules were, and how they behaved.

    • profile image

      Denise arceo 7 months ago

      Denise arceo

      BAC II

      Gas is one of the states of matter. It's molecules occupy space as liquid can occupy space of any shape.

      It is relatable to communication because whenever we travel to our designated location where we scout for stories that are relevant to the local population we use gas to fuel our car.

    • profile image

      jerson maniego BSHM-4 7 months ago

      gas is very important to us human for it is the most important thing (oxygen) that keeps us alive. in Hm it plays many roles it can be used to produce flame for heating meals. so it is important to understand gas

    • profile image

      Sean Rick Ledesma BAC-II 7 months ago

      Gases have three characteristic properties: (1) they are easy to compress, (2) they expand to fill their containers, and (3) they occupy far more space than the liquids or solids from which they form.

    • profile image

      Luisito Dimagiba III 7 months ago

      BSHM

      A substance possessing perfect molecular mobility and the property of indefinite expansion as opposed to a solid or liquid. The state of matter distinguished from the solid and liquid states by relatively low density and viscosity, relatively great expansion and contraction with changes in pressure and temperature, the ability to diffuse readily, and the spontaneous tendency to become distributed uniformly throughout any container.

    • profile image

      Rafael Adriano 7 months ago

      Gas particles move in random, straight-line motion. Gas particles possess a greater kinetic energy than the particles of a liquid or solid. The greater kinetic energy is due to gases existing at higher temperatures than liquids or solids. As temperature increases, particles move faster and, thus, have greater kinetic energy. The particles of a gas have minimal interactions, except collisions with each other.

    • Maniella de Leon profile image

      Maniella de Leon 7 months ago

      Properties of gases can be modeled using some relatively simple equations, which we can relate to the behavior of individual gas molecules. There are four laws; Avogadro's law, Charle's law, Gay Lussac's law and Boyle's law.

      In relation with teaching profession, we shall make rules or laws in our classroom for much easier classroom management and it will surely help the development of the students.

    • profile image

      Maniella Assumpta M. De Leon BEED II 7 months ago

      Properties of gases can be modeled using some relatively simle equations, which we can relate to the behavior of individual gas molecules. There are four laws namely, Charle's Law, Boyles Law, Gay Lussac's law and Avogadro's law.

      In relation with teaching profession, we shall make rules or laws in our classroom for much easier management of the classroom and it will surely help student's development.

    • profile image

      Mary Grace Gonzales 7 months ago

      BU BSTM 4 Sci 202

      Postulates of the Kinetic Molecular Theory. The behavior of gases is explained by what scientists call the Kinetic Molecular Theory. According to this theory, all matter is made of constantly moving atoms or molecules. ... The average kinetic energy of the molecule is directly proportional to the absolute temperature.

    • Jahzeel Santos profile image

      Jahzeel Santos 7 months ago

      Jahzeel DR. Santos BS PSY II The theory that describes a gas as a large number of submicroscopic particles (atoms or molecules), all of which are in constant rapid motion that has randomness arising from their many collisions with each other and with the walls of the container. It assumes that the molecules are very small relative to the distance between molecules. The molecules are in constant, random motion and frequently collide with each other and with the walls of any container. Gases behave differently than solids or liquids do. For example, the volume of a gas can change due to pressure, but the volume of a solid or liquid generally cannot. The gas laws describe how variables such as pressure, volume, and temperature affect the behavior of gases.

    • mariseperez08 profile image

      mariseperez08 7 months ago

      Perez, Nina Marise V.

      BEED-II

      (TF/ 12:30-2:00pm CAS 105)

      One of the most amazing things about gases is that, despite wide differences in chemical properties, all the gases more or less obey the gas laws. The gas laws deal with how gases behave with respect to pressure, volume, temperature, and amount. Gases are the only state of matter that can be compressed very tightly or expanded to fill a very large space. Pressure is force per unit area, calculated by dividing the force by the area on which the force acts. The earth's gravity acts on air molecules to create a force, that of the air pushing on the earth. This is called atmospheric pressure. The units of pressure that are used are pascal (Pa), standard atmosphere (atm), and torr. 1 atm is the average pressure at sea level. It is normally used as a standard unit of pressure. The SI unit though, is the pascal. 101,325 pascals equals 1 atm. For laboratory work the atmosphere is very large. A more convient unit is the torr. 760 torr equals 1 atm. A torr is the same unit as the mmHg (millimeter of mercury). It is the pressure that is needed to raise a tube of mercury 1 millimeter. There are also 4 laws, Charle's Law, Boyle's Law, Gay Lussac's Law and Avogardo's Law.

    • Elize Bantang 14 profile image

      Elize Bantang 14 7 months ago

      Eliza B. Merle

      BEEd-ll

      Gas is one of the three forms of matter. Every known substance is either a solid, liquid or a gas. These forms differ in the way they fill space and change shape. A gas, such as air has neither a fixed shape nor a fixed volume and has weight. Measurable Properties of Gases are Property, Symbol, Common Units. And it has laws, Boyle's Law, Charle's law and Gay-Lussac’s Law. Having connection in teaching, students are so diverse, they have their own principles, beliefs and ideas in life. We have to respect each one of them.

    • Maria Luz Mendoza profile image

      Maria Luz Mendoza 7 months ago

      MA. LUZ MENDOZA BEED-II

      The word gas comes from gaos, a Dutch form of the word chaos. Gases were the last substances to be understood chemically. Gas is a state of matter that has no fixed shape and no fixed volume. Gases have lower density than other states of matter, such as solids and liquids. There is a great deal of empty space between particles, which have a lot of kinetic energy. The particles move very fast and collide into one another, causing them to diffuse, or spread out, until they are evenly distributed throughout the volume of the container. In many areas, gases are an indispensable part of our lives. Gases are often already used during production in this way. Typical applications are the freezing and packaging of vegetables and meat, the preparation of the dough for various baked goods, the ripening of bananas or the stabilization of thin-walled beverages cans. Other possible applications for gases in the food industry include the controlled cooling and energization of sausage products, the blending of pourable bulk foodstuffs, the conversion of liquid products or pastes into free-flowing powders, and the maintenance of a seamless cold chain for fresh and frozen products.

    • profile image

      Jahzeel DR. Santos BS PSY II 8 months ago

      The theory that describes a gas as a large number of submicroscopic particles (atoms or molecules), all of which are in constant rapid motion that has randomness arising from their many collisions with each other and with the walls of the container. It assumes that the molecules are very small relative to the distance between molecules. The molecules are in constant, random motion and frequently collide with each other and with the walls of any container. Gases behave differently than solids or liquids do. For example, the volume of a gas can change due to pressure, but the volume of a solid or liquid generally cannot. The gas laws describe how variables such as pressure, volume, and temperature affect the behavior of gases.

    • Kamille Fernando profile image

      Kamille Fernando 8 months ago

      IVY KAMILLE FERNANDO BS PSYCHOLOGY II

      A gas is a sample of matter that conforms to the shape of a container in which it is held and acquires a uniform density inside the container, even in the presence of gravity and regardless of the amount of substance in the container. Gases have three characteristic properties: (1) they are easy to compress, (2) they expand to fill their containers, and (3) they occupy far more space than the liquids or solids from which they form. Boyle's Law is an ideal gas law where at constant temperature. Charles's law states that the volume of a given mass of an ideal gas is directly proportional to its temperature on the absolute temperature scale (in Kelvin) if pressure and the amount of gas remain constant. Gay-Lussac's Law shows the relationship between the temperature and pressure of a gas. Combined gas law states that the pressure is inversely proportional to volume, or higher volume equals lower pressure. Pressure is directly proportional to temperature, or higher temperature equals higher pressure. An ideal gas is defined as one in which all collisions between atoms or molecules are perfectly eleastic and in which there are no intermolecular attractive forces.

    • JosephineLopez04 profile image

      JosephineLopez04 8 months ago

      Josephine V. Lopez / BEED - II

      The gas laws were developed at the end of the 18th century, when scientists began to realize that relationships between the pressure, volume and temperature of a sample of gas could be obtained which would hold to a good approximation for all gases. Gases behave in a similar way over a wide variety of conditions because they all have molecules which are widely spaced, and the equation of state for an ideal gas is derived from kinetic theory. The earlier gas laws are now considered as special cases of the ideal gas equation, with one or more of the variables held constant. In 1662 Robert Boyle studied the relationship between the volume and pressure of a gas at constant temperature. Charles's Law, or the law of volumes, was found in 1787 by Jacques Charles. It states that, for a given mass of an ideal gas at constant pressure, the volume is directly proportional to its absolute temperature, assuming in a closed system. Gay-Lussac's Law, Amontons' Law or the Pressure Law, was found by Joseph Louis Gay-Lussac in 1809. It states that, for a given mass and constant volume of an ideal gas, the pressure exerted on the sides of its container is directly proportional to its absolute temperature. Avogadro's Law states that the volume occupied by an ideal gas is directly proportional to the number of molecules of the gas present in the container.

    • profile image

      CHRISTIAN ANTHONY R VALINO BSPSY II 8 months ago

      Gases are the only state of matter that can be compressed very tightly or expanded to fill a very large space. The gas laws are not a set of government regulations concerning use of heating fuel; rather, they are a series of statements concerning the behavior of gases in response to changes in temperature, pressure, and volume. It is very important for us to know how gases behave not just for education perse but for our safety reasons too.

    • Elaiza Medina profile image

      Elaiza Medina 8 months ago

      Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma). A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g. oxygen), or compound molecules made from a variety of atoms (e.g. carbon dioxide). A gas mixture would contain a variety of pure gases much like the air. What distinguishes a gas from liquids and solids is the vast separation of the individual gas particles. This separation usually makes a colorless gas invisible to the human observer. The interaction of gas particles in the presence of electric and gravitational fields are considered negligible as indicated by the constant velocity vectors in the image. One type of commonly known gas is steam.

    • profile image

      Amira Ismail 8 months ago

      Amira Ismail

      GENERAL CHEMISTRY

      BAC-II

      The theories and behavior of gases brings together gas

      properties. Can be derived from experiment and theory. Relating this to our course which is Mass Communication we bring it together as well to our jobs within building a production or industry that we are in.

    • profile image

      Villaroman, Nikki D.C. BEEd III 8 months ago

      Gas is a state of matter that has no fixed shape and no fixed volume. Gases have lower density than other states of matter, such as solids and liquids. There is a great deal of empty space between particles, which have a lot of kinetic energy. The particles move very fast and collide into one another, causing them to diffuse, or spread out, until they are evenly distributed throughout the volume of the container.

      When more gas particles enter a container, there is less space for the particles to spread out, and they become compressed. The particles exert more force on the interior volume of the container. This force is called pressure. There are several units used to express pressure. Some of the most common are atmospheres (atm), pounds per square inch (psi), millimeters of mercury (mmHg) and pascals (Pa). The units relate to one another this way: 1 atm = 14.7 psi = 760 mmHg = 101.3 kPa (1,000 pascals).

      Besides pressure, denoted in equations as P, gases have other measurable properties: temperature (T), volume (V) and number of particles, which is expressed in a mole number (n or mol). In work involving gas temperature, the Kelvin scale is often used.

      Gas is part of our daily lives. As a future educator, teaching gas to learners would make them knowledgeable about what types of gas are harmful and useful to them.

    • Maryn Pineda profile image

      Maryn Pineda 8 months ago

      MARY NOELLE PINEDA BAC-II GENERAL CHEMISTRY TF 7:30-12:00 I have learned from reading the slides that gas is one of the three forms of matter and that most gases exist as molecules, they are randomly distributed and are far apart, they have molecular mass and that one of its behavior is they are made of constantly moving atoms or molecules. This lesson is important and appropriate for my course for information dissemination because we became familiar with the basic characteristics of gases and we've understand the postulates of the kinetic molecular theory as applied to gases. And of course, the gas laws.

    • profile image

      Aldrin L Santiago 8 months ago

      Aldrin L Santiago BS PSY II Gases behave differently than solids or liquids do. For example, the volume of a gas can change due to pressure, but the volume of a solid or liquid generally cannot. The gas laws describe how variables such as pressure, volume, and temperature affect the behavior of gases. As a psychology student, it can be useful in my future field.

    • Zipagan profile image

      Zipagan 8 months ago

      Dhaina Marie B. Zipagan (BAC-II)

      Gas is one of the three forms of matter. A gas is a state of matter with no defined shape or volume. Gases have their own unique behavior depending on a variety of variables, such as temperature, pressure and volume.

      Gases have three characteristic properties: (1) they are easy to compress, (2) they expand to fill their containers, and (3) they occupy far more space than the liquids or solids from which they form.

      There are 5 measurable properties of gases: Pressure (P) torr, mm Hg, cm Hg, atm; Volume (V) ml, i, cm, m; Temperature (T) K; Amount of gas (n) mol; Density (d) g/l

      There are different gas laws that explain the relation on how the pressure, temperature, volume and the number of particles in the container of gas.

      Boyle's Law states that at a given temperature, the volume occupied by a gas is inversely proportional to the pressure. Charles' Law states that at a given pressure, the volume occupied by a gas is directly proportional to the absolute temperature of the gas. Gay-Lussac’s Law states that the pressure of a certain mass of gas is directly proportional to its absolute temperature at constant volume. The Combined Gas Law (Combination of Boyle’s Law and Charle’s Law) states that the volume of a certain mass of gas is inversely proportional to its pressure and directly proportional to its absolute temperature.

      As a mass communication student, we should not just disseminate information but correct information that’s why it is important that we should have knowledge about this.

    • Nik Miranda profile image

      Nik Miranda 8 months ago

      MIRANDA, NIXIELINE

      BAC II

      Gas is present everywhere but we cannot be seen by our naked eye because it has no fixed shape, has no color and has weight. A gas mixture would contain a variety of pure gases much like the air. We cannot live without gases. We have always had greenhouse gases in our atmosphere. Without them the Earth would be too cold for us, or any other living thing, to survive.

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      Jannilene Tubon BAC II 8 months ago

      Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma). A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g. oxygen), or compound molecules made from a variety of atoms (e.g. carbon dioxide). A gas mixture would contain a variety of pure gases much like the air. What distinguishes a gas from liquids and solids is the vast separation of the individual gas particles. This separation usually makes a colorless gas invisible to the human observer. The interaction of gas particles in the presence of electric and gravitational fields are considered negligible as indicated by the constant velocity vectors in the image. One type of commonly known gas is steam.

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      Salvador, Jucel Roma M. 8 months ago

      Salvador, Jucel Roma M.

      BEED-II

      TF/ 12:30-2:00/ CAS 105

      Kinetic Molecular Theory states that gas particles are in constant motion and exhibit perfectly elastic collisions. Kinetic Molecular Theory can be used to explain both Charles' and Boyle's Laws. The average kinetic energy of a collection of gas particles is directly proportional to absolute temperature only. Combining Charles's Law, Boyle's Law, and Gay-Lussac's Law gives us the combined gas law. For a gas with constant molar mass, the three other state variables are interrelated. The Combined Gas Law can be used for comparisons between gases. As a future teacher, we should abide with the laws and principles in the teaching-learning process. We should apply all these laws and principles to make our teaching effective and for our students to be guided and for them to understand the lesson well.

    • Cristina Perez profile image

      Cristina Perez 8 months ago

      Perez, Ma. Cristina M.

      BEED-II

      TF/ 12:30-2:00/ CAS 105

      The gas laws are not a set of government regulations concerning use of heating fuel; rather, they are a series of statements concerning the behavior of gases in response to changes in temperature, pressure, and volume. These were derived, beginning with Boyle's law, during the seventeenth, eighteenth, and nineteenth centuries by scientists whose work is commemorated through the association of their names with the laws they discovered.

      There are also 4 four laws namely: Charle's Law, Boyle's Law, Gay Lussac's Law and Avogardo's Law.

      We can connect this to teaching for us being teachers should have different laws and principles inside the classroom. A one law is not suitable for all. Therefore, we should think of different laws and strategies that will greatly help students in learning.

    • Naomi de Guzman profile image

      Naomi de Guzman 8 months ago

      Naomi de Guzman BS PSY II

      Gases are made up of particles with no defined volume but with a defined mass. In other words their volume is miniscule compared to the distance between themselves and other molecules.

      Gas particles undergo no intermolecular attractions or repulsions. This assumption implies that the particles possess no potential energy and thus their total energy is simply equal to their kinetic energies.

      Gas particles are in continuous, random motion.

      Collisions between gas particles are completely elastic. In other words, there is no net loss or gain of kinetic energy when particles collide.

      The average kinetic energy is the same for all gases at a given temperature, regardless of the identity of the gas. Furthermore, this kinetic energy is proportional to the absolute temperature of the gas.

    • Carmela Perez profile image

      Carmela Perez 8 months ago

      Perez, Ma. Carmela M.

      BEED-II

      (TF/ 12:30-2:00/ CAS 105)

      Gases were among the first substances studied using the modern scientific method, which was developed in the 1600s. It did not take long to recognize that gases all shared certain physical behaviors, suggesting that gases could be described by one all-encompassing theory. The kinetic molecular theory of gases is a model that helps us understand the physical properties of gases at the molecular level. Gases are the only state of matter that can be compressed very tightly or expanded to fill a very large space. Pressure is force per unit area, calculated by dividing the force by the area on which the force acts. The earth's gravity acts on air molecules to create a force, that of the air pushing on the earth. There are four laws: The Boyle's Law, Charle's Law, Avogardo's Law, and Gay Lussaca's Law.

      These laws can be connected to teaching in which we have different laws and methods or strategies to which our students can understand the lesson. We have a variety of methods to attain our lesson's objectives and to meet all the needs of our students.

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      Samantha Aiva Mareey Rayco - BS PSYCHOLOGY II (GenChem) 8 months ago

      Gas as we all know is one of the three forms of matter, with solid and liquid. Gases are forms of matter that can be easily cpompressed. Gases can be measured in pressure, volume, densit and temperature and to prove that there is a link between this properties, scientists formed several gas laws to explain the relationship between these properties.

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      Karen Manalac, BAC IV 7:30-12:00 TF 8 months ago

      Gas as we all know if one of the four fundamental states of matter. Yes, gas is important because we use it in so many different aspects. As a communication arts student, I can say that this is relevant to our course by stating that we need to spread not only just information but correct information to people.

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      Mallorie San Miguel 8 months ago

      Mallorie SAn Miguel BS PSY II

      Temperature, pressure, amount and volume of a gas are interdependent, and many scientists have developed laws to describe the relationships among them.

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      Frances Birco 8 months ago

      Frances Birco (BAC-II)

      Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma). A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g. oxygen), or compound molecules made from a variety of atoms (e.g. carbon dioxide). A gas mixture would contain a variety of pure gases much like the air. What distinguishes a gas from liquids and solids is the vast separation of the individual gas particles. This separation usually makes a colorless gas invisible to the human observer. In relation with Mass Communication, gas is very important because it is one of the factors we use in giving information.

    • AZ08 profile image

      AZ08 8 months ago

      Eimeren Grace DC. Soriaga (BS-PsyII)

      The early gas laws were developed at the end of the eighteenth century, when scientists began to realize that relationships between the pressure, volume and temperature of a sample of gas could be obtained which would hold for all gases. Gases behave in a similar way over a wide variety of conditions because to a good approximation they all have molecules which are widely spaced, and nowadays the equation of state for an ideal gas is derived from kinetic theory. The earlier gas laws are now considered as special cases of the ideal gas equation, with one or more of the variables held constant. Gas or Air very important to all living things nothing knowing the theory behind them can help us improve our understanding of live more.

    • Vivianjane Mempin profile image

      Vivianjane Mempin 8 months ago

      Vivian Jane M. Mempin

      BAC-II

      General Chemistry

      Gas is one of three states of matter. It is distinct from solid and liquid since it has no fixed shape and no fixed volume. Unlike solids which has tightly-compressed particles, and unlike liquids with slightly moving particles, gases has particles which could move in any direction and those particles are randomly distributed and far apart.

      There are 5 measurable properties of gases such as pressure (atm, torr), temperature (Kelvin), volume (mL, L), number of particles (mol) and density (g/mol). And the relations of each property from one another are explained by the different gas laws.

      Boyle's Law says that Volume of gas is inversely proportional to its pressure. Charles' Law states that the volume of a gas is directly proportional to its temperature. Gay Lussac's Law explains that the pressure of a gas is directly proportional to its temperature. While Combined Gas Law states that the volume of a gas is inversely proportional to its pressure and directly proportional to its temperature.

      In communication, we aim not only to disseminate information in oral or written form. That's why knowing this is important for us, BAC students.

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      April Cayetano 8 months ago

      Gas is a state of matter that has no fixed shape and no fixed volume. Gases have lower density than other states of matter, such as solids and liquids. There is a great deal of empty space between particles, which have a lot of kinetic energy. The particles move very fast and collide into one another, causing them to diffuse, or spread out, until they are evenly distributed throughout the volume of the container.

      When more gas particles enter a container, there is less space for the particles to spread out, and they become compressed. The particles exert more force on the interior volume of the container. This force is called pressure.

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      PATRICIA ANN T. CRUZ 8 months ago

      A substance such oxygen and hydrogen that is like air like no fixed shape. All matter is made of constantly moving atoms pr molecules. The molecules collided with one another and with the sides of containers

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      AIA KARREL PUNZALAN BS PSY II 8 months ago

      Since the days of Aristotle, all substances have been classified into one of three physical states. A substance having a fixed volume and shape is a solid. A substance, which has a fixed volume but not a fixed shape, is a liquid; liquids assume the shape of their container but do not necessarily fill it. A substance having neither a fixed shape nor a fixed volume is a gas; gases assume both the shape and the volume of their container. The structures of gases, and their behavior, are simpler than the structures and behavior of the two condensed phases, the solids and the liquids.

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      AIA KARREL PUNZALAN BS PSY II 8 months ago

      Look around the classroom. Everything, from the clothes you are wearing to the air you breath is matter.Matter is very important. Matter makes up everything including living things like plants and people. It also makes non-living things such as tables and chairs. Things as big as an elephant or as tiny as a grain of sand on a beach are matter. Everything is matter and matter comes in three different states: solid, liquid and gas. That means that everything is either a solid, a liquid, or a gas. Each state has properties.

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      Chella P. Maniquiz TF-7:30-12:00 BSTM 8 months ago

      In studying the behavior of gas, gas is one of the four fundamental states of matter, A pure gas may be made up of individual atoms. Gas mixture would contain a variety of pure gases much like the air, therefor gas are part of our daily life so we must know the different behavior and theories of it.

      In the field of Tourism Industry, Gases are very important because without it many equipments may not work properly..

    • Paolo Evangelista profile image

      Paolo Evangelista 2 years ago

      Any gas is composed of a very large number of very tiny particles called molecules.The molecules are very far apart compared to their sizes, so that they can be considered as points The molecules exert no forces on one another except during rare collisions, and these collisions are perfectly elastic,they take place within a negligible span of time and in accordance with the laws of mechanics.

    • Cess Capulong profile image

      Cess Capulong 2 years ago

      Gases are made up of particles with no defined volume but with a defined mass. In other words their volume is minuscule compared to the distance between themselves and other molecules.

    • Jole Ymenel Tila profile image

      Jole Ymenel Tila 2 years ago from Pulilan, Bulacan

      Tila Jole Ymenel F. BUHM

      A pure gas may be made up of individual atoms elemental molecules made from one type of atom or compound molecules made from a variety of atoms . A gas mixture would contain a variety of pure gases much like the air.

    • Paulo Tomas profile image

      Paulo Tomas 2 years ago

      TOMAS J P BUHM

      Gas is everywhere, we may also see this by our naked eyes and i think that is the best reason why it is related to our chosen fields, it is for us to be aware of what we see and what we feel by our sense of touch.

    • SarmientoMonic profile image

      Monic dela Cruz Sarmiento 2 years ago from San Miguel, Bulacan

      31Sarmiento, MDC BUHM

      Gas is one of the basic forms off matter. Its relevance to our field is that wherever we go, whatever we do, whoever we serve, gas is just everywhere. We all know that oxygen is one of the important gas we need, not only in our fieldd but also in our everyday life to survive. In preparing food, gas plays an important role. Without it, we will not be able to prepare foods for our dear costumers. Another thing, we also use gas in vehicles we use to go on our work. Without gas, there will be no Hospitality Industry that functions well.

    • Castro F C BUTM profile image

      Fatima Cruz Castro 2 years ago

      7 CASTRO F C BUTM 2014

      As a tourism student we should know about classifications or any types of gases. and it includes all about oxygen and anything. that's why we should know this and i know it will be so useful someday.

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      Zyrine Mae Taruc 2 years ago

      Taruc, ZM BUTM 2014

      The speed of gas particles is related to their absolute temperature. In other words, as their temperature increases, their speed increases, and finally their total energy increases as well. However, it is impossible to define the speed of any one gas particle.

    • Estacio M O BUTM profile image

      Estacio M O BUTM 2 years ago

      Gas is important to know especially because it is one of the three basic forms of matter, composed of molecules in constant random motion. Unlike a solid, a gas has no fixed shape and will take on the shape of the space available. Unlike a liquid, it has no fixed volume and will expand to fill the space available.We can use gas everywhere especially in traveling and cooking.

    • Rad Mesina profile image

      Rad Mesina 2 years ago from Calumpit, Bulacan

      23 MESINA, DJ BUHM

      oxygen keep our life nitrogen & co2 keep the plants and we have our food we can't live without cooking gas. No vehicle will move without it.

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      Clarenz Maximo 2 years ago

      21 MAXIMO, CR BUTM

      All gases are made up of very tiny particles called molecules, which are widely separated from one another in an otherwise empty space. The gas are moved at a high speed and traveling in a straight line but in random direction.

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      Phoebe Sp 2 years ago

      Gases can evaporate or soliditate. Gases is one of the most important property of matter because it is very essential and common in the human body. Our body is composed of water with gases. Our environment needs gas and so does us. Our environment is composed of gases and it is one of the main sources of life. This is why gases is very important to us.

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      28,QUIZON,CA BUTM 2 years ago

      As a tourism student.Gas is very important in our field,It is helpful because we can identify the temperature of a certain place and other properties of gases like the relations of volume, pressure, and mass.

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      28Quizon,CA BUTM 2 years ago

      Gases is very important in the field of Tourism. It is invisible but it plays a very important role in our life. without gases we cannot live. Gas use for transportation and in our course it is very important because in the airline we need it to send the tourist to his/her destination.

    • Jonna Mae Book profile image

      Jonna Mae Book 2 years ago

      BOOK, JM BUTM 2014

      A pure gas may be made up of individual atoms (e.g. a noble gas or atomic gas like neon), elemental molecules made from one type of atom (e.g. oxygen), or compound molecules made from a variety of atoms (e.g. carbon dioxide). A gas mixture would contain a variety of pure gases much like the air.

    • Elli Rose Gabriel profile image

      Elli Rose Gabriel 2 years ago

      1 BALELA, E.G BUTM 2014

      as a tourism students gas is very important because whatever we do we need gas. like for travelling for cooking and etc.

      aside from that we have to know the uses of different gases for ours to be safe.

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      27 PARUNGAO, GT BUTM 2 years ago

      Gases are made up of particles with no defined volume but with a defined mass. In other words their volume is minuscule compared to the distance between themselves and other molecules. A gas is one of the different phases of matter. Similar to liquids and plasmas, gases are fluids.

    • Melanie Samson profile image

      Melanie Samson 2 years ago

      SAMSON, MH BUTM 2014-2015

      Gas is everywhere, we may also see this by our naked eyes and I think that is the best reason why it is related to our chosen fields, it is for us to be aware of what we see and what we feel by our sense of touch.

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      Marife DG. Montejo 2 years ago

      Gases are very important, it has a lot of uses, without it we cannot do our daily activities and in our field we really need gases for traveling and cooking to satisfied our guests.

    • Capanas MJ BUHM profile image

      Capanas MJ BUHM 2 years ago

      Capanas MJ BUHM

      Gas is one of the four fumdamental states of matter. It's important to have gas in our everyday living.

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      marjorie Lansangan BSHM 2 years ago

      for me Gases are invisible but they play in everyday things a visible role. and it is important to us , in our life without oxygen or Gas we canno't live in this world Gas is so very needed specially in our course of Hospitality Management on how to cooking foods . so everything is really relevance.

    • Adrienne DelaCruz profile image

      Adrienne DelaCruz 2 years ago

      Being an hm student gases is very important to know,because gases is useful even in thr kitchen.

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      Mary rose Banzon BSTM1-1 2 years ago

      As a tourism Student we should start learning about gases because we will encounter this topic in the time. Chemistry was everywhere and gases is part of it too. so being a tourism student we really need to study this matter.

    • profile image

      Mary rose Banzon 2 years ago

      As a tourism Student we should start learning about gases because we will encounter this topic in the time. Chemistry was everywhere and gases is part of it too. so being a tourism student we really need to study this matter.

    • Julien Villanueva profile image

      Julien Villanueva 2 years ago

      Villanueva Julien / BSHM 2014 2015

      By knowing things about gas, we could see how it is important to us. We can't always see gases. But we know it's there somewhere doing what is it supposed to do. Oxygen and Carbondioxide are the prime examples. We don't pay much attention to it. But we need it.

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      Reniel Carillo 2 years ago

      For me bec im HM student is very need to learn to gases if assigned me in kitchen i know my to do if we have problem.

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      john angelo ortega bshm2 2 years ago

      as an hm student it is very much important to have knowledge about gases. in my industry, when I was assigned in the housekeeping department, it was very important because as a housekeeper, we need to maintain the cleanliness of the hotel, so to stay the good smell of the hotel, i need to use air freshener. this component easily combine in our air as a form of gas.

    • profile image

      sarah aligato 2 years ago

      in our daily life, gases are very important component of chemistry. oxygen as a form of gas, is the most important because without this, we cannot live.

    • Trisha Vanguardia profile image

      Patrisha Anne D.Vanguardia 2 years ago from San Ildefonso,Bulacan

      Gas is important for HM student because when you cook some dishes you will use gas so that it can be cook and be present nicely.

    • Carlo Buencamino profile image

      Jan Carlo Buencamino 2 years ago from Banga 2nd Plaridel Bulacan

      Gas is one of the main needed in Hospitality Management . Specially in Cooking . To cook food and ti prevent germs

    • profile image

      John Carlo Viola 2 years ago

      Gas is very important in the Hospitality industry especially in cooking and reheating food.

    • Ellen Canoza profile image

      Ellen Mae M. Canoza 2 years ago from Bonga Mayor, Bustos Bulacan

      03, Canoza EM BUHM

      The relevance of Gases in Hm students, its present everywhere but we cannot be seen by our naked eye because it has no fixed shape, has no color and has weight. Gas is very helpful in terms of cooking food for HM.Gas particles are widely separated from one another, and consequently have weaker intermolecular bonds than liquids or solids.

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      Jessa Pantan 2 years ago

      Gases is very important in Hospitality Management and in our daily lives. The air we breath is a gas, the gas we use in our cooking. Plants is the best source of Oxygen were needed by man. And as a man be create gas, the Carbon dioxide by exhaling that the plants need. There many uses of gas.

    • profile image

      Eimon Paolo 2 years ago

      Eimon Paolo Sanchez

      Gas is very important in our industry it is use in many things like cooking. And we should study gas to know what its good and bad effect.

    • simplyariannejoy profile image

      simplyariannejoy 2 years ago

      17 Flores, AJ BUHM

      For me, gas is very important for us especially for the cooking industry. Cooking will be useless without it. Oxygen is an example of gas too. Nitrogen and Carbon dioxide keeps the plants alive and healthy. Plants are always use as the secondary or main ingredient in all types of dish. Vehicles will not move without it. We also need gas in cooking our favorite dish or food.

    • profile image

      Johnmarverickr 2 years ago

      It's very important to know different kinds of gases especially in Hospitality Management to help us to classify which is the dangerous or the safety one.

    • profile image

      mikaela igaya 2 years ago

      18 IGAYA MC BUTM

      Gas is important in our industry also in our life. Because if gas is nothing in this world, we can't capable to use the something that can work with gas. Like transportation it cannot use if its not have a gas, also if we want to make a fire we need t a gas to make a fire in a simplest way.

    • Winnie Aquino profile image

      winnie rose inoncillo aquino 2 years ago from San Rafael, Bulacan

      2 Aquino, WR BUHM 2014

      Knowing and understanding what are gases is very much important to every person not only in the field of Hospitality Management, Tourism and other courses.

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      Miguel Panlilio 2 years ago from Baliuag Bulacan

      PANLILIO M.A.R BUHM14

      it is very important to be aware of different types of gases especially in hospitality industry, some gases are useful but some are dangerous, and some are useful and needed yet very dangerous like LPG that we use in cooking. studying and understanding gas is helpful not just in hospitality industry but in everday lives.

    • renzocauzon profile image

      renzocauzon 2 years ago

      09 Cauzon,RA BUHM

      Gas is one of the four fundamental states of matter. It is important to have gas in our everyday living. It is use for cooking and for us to live. Gas is very important to our course hospitality management.

    • Josephdc profile image

      Josephdc 2 years ago

      Gas play a big role in our life as human. If theres no gas we wont be able to live in Earth. Also in Hospitality Management we use gas in different ways. Theres a methane gas that we use to produce fire and also the hydrogen gas we used it to prolong the a food or beverage.

      12Delacruz,JMBUHM

    • simplyariannejoy profile image

      simplyariannejoy 2 years ago

      17 Flores, AJ BUHM

      Gas is very important for us especially for the cooking industry. Cooking will be useless without it. Oxygen is an example of gas too. Nitrogen and Carbon dioxide keeps the plants alive and healthy. Plants are always use as the secondary or main ingredient in all types of dish. Vehicles will not move without it. We also need gas in cooking our favorite dish or food.

    • profile image

      Arel Zcirem Canimo 2 years ago

      08 CANIMO, AZ BUHM1-2 15

      The relevance of Gases in our field is that we would know the different types of gases we can encounter in the near future as an Hospitality Management it is important for us to know more about Gases like the different theories and its behavior.

    • paguiligan julia profile image

      Julia Ann 2 years ago

      37 Paguiligan, JAT BUHM

      Gas is also very important to the field of Hospitality Management, because when we cooked a meals you need gas to produced a flame for heating our foods that we ate.

    • profile image

      19 Garcia R. BUHM 2 years ago

      Gas is very important in our field which is Hospitality Management because gas is about temperature and pressure which is we need in our course.

    • profile image

      Arel Zcirem Canimo 2 years ago

      08 AZ CANIMO BUHM1-2 15

      The relevance of Gases in our field is that we would know the different types of gases we can encounter in the near future.For me as a Hospitality Management Student it is important for us to know more about Gases like the different theories and its behavior.

    • Rolyn Santos profile image

      Rolyn Santos 2 years ago from Bustos, Bulacan

      Gas a substance such as oxygen or hydrogen that is like air and has no fixed shape. A gas or mixture of gasdes that is burned as a fuel. A fluid as air that has neither independent shape nor volume but tends to expand indefinitely.

    • profile image

      honeygracesalonga 2 years ago

      SALONGA, HG C. BUHM 15

      GASES.

      The relevance of gases in our course is that it exists everywhere; from the gases we use for certain cooking equipments to function.

    • profile image

      Ralph Albert C. Cruz 2 years ago

      CRUZ RA BUHM

      The three important forms of matter are solid, liquid and gas. Without gas, life cycle would not be complete. Air, oxygen and carbon dioxide is a kind of gas and without those we, living things cannot breathe. Gas exist in water cycle and why we experience rain. Helium is a kind of gas which sustain inside the balloons. Clearly, gas is everywhere as much as solid and liquid and they are part of our daily basis.

    • mchristinelopez profile image

      mchristinelopez 2 years ago

      LOPEZ, MARIE CHRISTINE, BUHM

      A gas is one of the different phases of matter. Similar to liquids and plasmas, gases are fluids. This means that they have the ability to flow and that they will not usually return to their prior stage after they have been deformed. This doesn't mean that they don't have viscosity. A property of a gas that is different from that of a liquid is that; a gas does not occupy a fixed space or volume, but will instead expand to fill whatever container it is in, this is opposite of a liquid that will remain the same.

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      Sanguyo nicko 2 years ago

      Gases is very important to us as a human being, the relevance of this in the field of Hospitality Management is we should be Directly Proportional to our guest, we should be always no their moods. If they are mad we should be calm them down. And we should be Indirect proportional if they are something do wrong. This is very important characteristics of a future hotelier.