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Topic: Ideal gas

Related Topics

Ideal gas law

Ideal gas equation

Fermi gas

Gas laws

Equation of state

Bose gas

Gibbs paradox

Boltzmann distribution

Molar gas constant

Kinetic theory

Gas constant

Partial pressure

Ludwig Boltzmann

Density of states

Boson

	Ideal Gas Law
		In such a gas, all the internal energy is in the form of kinetic energy and any change in internal energy is accompanied by a change in temperature.
		The ideal gas law can be viewed as arising from the kinetic pressure of gas molecules colliding with the walls of a container in accordance with Newton's laws.
		One mole of an ideal gas at STP occupies 22.4 liters.
	hyperphysics.phy-astr.gsu.edu /hbase/kinetic/idegas.html (1049 words)

	Ideal Gas Law
		In perfect or ideal gas the change in density is directly related to the change of temperature and pressure as expressed by the Ideal Gas Law.
		The Individual Gas Constant - R - depends on the particular gas and is related to the molecular weight of the gas.
		Gas Mixture Properties Special care must be taken for gas mixtures when using the ideal gas law, calculating the mass, the individual gas constant or the density
	www.engineeringtoolbox.com /ideal-gas-law-d_157.html (541 words)

	Gas - MSN Encarta
		A gas that obeyed the ideal gas equation exactly under any conditions would be an ideal gas, but no actual gas perfectly conforms to the equation at all temperatures and pressures.
		The ideal gas equation assumes that there are no attractive forces between particles of a gas.
		The ideal gas equation assumes that particles are free to move anywhere within the volume (V) of a container, so this fraction of unavailable space around each particle requires an adjustment to that volume (V – b).
	encarta.msn.com /encyclopedia_761576933_4/Gas.html (1132 words)

	Environmental Protection Agency > Basic Concepts in Environmental Sciences > Module 2
		All inputs into the ideal gas law equation are the same for gases A and B except for the number of moles.
		All inputs into the ideal gas law equation are the same for gases A and B except for the pressure.
		All inputs into the ideal gas law equation are the same for gases A and B except for the temperature.
	www.epa.gov /eogapti1/module2/idealgas/pp_answer/p_answer.htm (622 words)

	Ideal Gas Law (Site not responding. Last check: )
		An ideal gas is a gas that conforms, in physical behaviour, to a particular, idealized relation between pressure, volume, and temperature called the ideal gas law.
		Although no gas has these properties, the behaviour of real gases is described quite closely by the ideal gas law at sufficiently high temperatures and low pressures, when relatively large distances between molecules and their high speeds overcome any interaction.
		The ideal gas law may be written in a form applicable to any gas, according to Avogadro's law (q.v.), if the constant specifying the quantity of gas is expressed in terms of the number of molecules of gas.
	abyss.uoregon.edu /~js/glossary/ideal_gas_law.html (287 words)

	Gas Laws
		To calculate the pressure of the gas the partial pressure of the water must be subtracted from the pressure in the container.
		In the combined gas law, the volume of gas is directly proportional to the absolute temperature and inversely proportional to the pressure.
		The ideal gas law is a combination of all the gas laws.
	library.advanced.org /10429/high/gaslaws/gaslaws.htm (1074 words)

	What is the Ideal Gas Law?
		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.
		The ideal gas law states that at a temperature of 273 K and a pressure of 1 atmosphere, 1 mole of any gas occupies a volume of 22.4 liters.
		The universal gas constant has a value which depends only upon the units in which the pressure and volume are measured.
	www.biosint.com /faqs/ideal-gas-law.htm (283 words)

	Physical Chemsistry - Ideal Gas Laws
		At constant temperature the volume of a fixed mass of gas is inversely proportional to the pressure.
		The molar mass of (M) of a substance is the mass of 1 mole of the substance.
		The partial pressure of each gas in a mixture is defined as the pressure the gas would exert if it alone occupied the whole volume of the mixture at the same temperature.
	www.roymech.co.uk /Related/Chemistry/Chem_Gas_ideal.html (1493 words)

	Ideal Gas Properties
		An ideal gas is a special case of a pure substance in the vapor phase.
		Since an ideal gas is a special case of a pure substance, the state is specified by giving the values of two properties.
		Of course, the P-v-T surface for an ideal gas is much simpler that that for the general case of a pure substance.
	gaia.ecs.csus.edu /~reardonf/thermhtm/idgas.htm (694 words)

	Deviations from Ideal Gas Law Behavior:
		Because the volume of the gas particles depends on the number of moles of gas in the container, the term that is subtracted from the real volume of the gas is equal to the number of moles of gas times b.
		The ideal gas equation predicts that a plot of PV versus P for a gas would be a horizontal line because PV should be a constant.
		According to the ideal gas equation, the pressure would have to be increased to 112 atm to compress 1.00 mol of CO at 0C to a volume of 0.200 L. The van der Waals equation, however, predicts that the pressure will only have to increase to 52.6 atm to achieve the same results.
	chemed.chem.purdue.edu /genchem/topicreview/bp/ch4/deviation5.html (1258 words)

	Ideal gas Summary
		The result is an equation of state for gases which is similar in form to the ideal gas equation but in which there is an additional internal pressure term due to the molecular attractions and the space occupied by the molecules is subtracted from the volume term.
		The thermodynamic properties of an ideal gas can be described by two equations: The equation of state of a classical ideal gas is given by the ideal gas law.
		Any gas behaves as an ideal gas at high enough temperature and low enough density, but at the point where the Sackur-Tetrode equation begins to break down, the gas will begin to behave as a quantum gas, composed of either bosons or fermions.
	www.bookrags.com /Ideal_gas (1989 words)

	Gas Laws (Site not responding. Last check: )
		The ideal gas equation can be used to predict the value of any one of the variables that describe a gas from known values of the other three.
		The ideal gas equation can be applied to problems that don't seem to ask for one of the variables in this equation.
		Gas law problems often ask you to predict what happens when one or more changes are made in the variables that describe the gas.
	xenon.che.ilstu.edu /genchemhelphomepage/topicreview/bp/ch4/gaslaws3.html (2804 words)

	I - Glossary of chemical terms
		Ideal gas is a gas in which there is complete absence of cohesive forces between the component molecules; the behavior of such a gas can be predicted accurately by the ideal gas equation through all ranges of temperature and pressure.
		The generalized ideal gas law is derived from a combination of the laws of Boyle and Charles.
		Ideal solution is a solution in which solvent-solvent and solvent-solute interactions are identical, so that properties such as volume and enthalpy are exactly additive.
	www.ktf-split.hr /periodni/en/abc/i.html (789 words)

	Chemistry : Chapter 8 : Overview (Site not responding. Last check: )
		The volume of 1 mole of gas at STP is called standard molar volume and has a value of 22.4 L. Because pressure, volume, temperature, and moles are the only variables, if three of the variables are known, the other can be determined.
		Since the identity of the gas is irrelevant to the gas laws, the laws work as well for mixtures of gases as a single gas.
		Since all molecules of gas in a mixture must have the same temperature and volume, the gases are differentiated by the pressure.
	www.wwnorton.com /chemistry/overview/ch8.htm (973 words)

	Ideal gas law Summary
		The gas constant arises from a combination of the proportionality constants in the three empirical gas laws and has a value that depends only upon the units in which the pressure and volume are measured.
		The ideal gas law is the equation of state of an ideal gas.
		The ideal gas law can also be derived from first principles using the kinetic theory of gases, if the molecules are assumed to be hard spheres.
	www.bookrags.com /Ideal_gas_law (647 words)

	* Ideal gas law - (Astronomy): Definition
		ideal gas law -- a law relating the pressure, density, and temperature of a gas.
		Ideal Gas Law - The equation of state for a low-density gas in which pressure is proportional to the product of density and temperature
		While for gases the change in volume or pressure is related to the container that the gas is in, this can be easily estimated by the ideal gas law.
	en.mimi.hu /astronomy/ideal_gas_law.html (163 words)

	gases.htm
		The ideal gas law may also be used to investigate the behavior of a gas when pressure, volume, the moles of gas and/or temperature are changed.
		This equation is useful for determining the molar mass of a gas from experimental data, where the mass, pressure, volume and temperature of the gas is measured.
		For an ideal gas, the collisions between gas particles was said to be "elastic" -- no attractive or repulsive forces exist, and thus, no energy is exchanged during collisions.
	pages.towson.edu /ladon/gases.html (2345 words)

	Ideal Gas Law
		The Ideal Gas Law may be the largest and most complex of the gas laws.
		This is in part because of the number of variables in the equation, and in part to the abstraction of an "ideal" gas that the law is built on.
		The temperature of a gas is the average kinetic energy of all of the molecules.
	library.thinkquest.org /12596/ideal.html (706 words)

	ideal gas (thing)@Everything2.com
		The concept of an ideal gas is an approximation often used in physics and chemistry in order to simplify calculations.
		Under high pressures and low temperatures (as determined by their relation to the gas in question's critical temperature and critical pressure) certain assumptions made by the ideal gas model no longer hold true, and you will have a nonideal gas on your hands.
		Even though here in the real world there is no such thing as an ideal gas, all throughout chemistry and physics they are the gold standard that all real gases are compared to, and even just the ability to use them as a reference point allows for some pretty nifty calculations.
	everything2.com /?node_id=1851573 (2485 words)

	Gas Laws: Ideal Gas Law and the Gas Constant (Site not responding. Last check: )
		For a constant amount of gas at a constant pressure, the volume of the gas is directly proportional to the absolute temperature.
		The molar concentration, C, of a gas is defined to be C = n/V.
		In effect, the pressure of the gas should be directly proportional to both the molar concentration and the temperature.
	www.chm.davidson.edu /ChemistryApplets/GasLaws/GasConstant.html (306 words)

	Gas Laws
		The ideal gas equation can be used to predict the value of any one of the variables that describe a gas from known values of the other three.
		The ideal gas equation can be applied to problems that don't seem to ask for one of the variables in this equation.
		Gas law problems often ask you to predict what happens when one or more changes are made in the variables that describe the gas.
	chemed.chem.purdue.edu /genchem/topicreview/bp/ch4/gaslaws3.html (3160 words)

	Lab: Ideal Gas Laws
		The ideal gas law is most succinctly stated in the equation: PV = nRT, where P is pressure, V is volume, n is number of moles, R is the gas constant and T is temperature.
		The volume of a gas at several temperatures was measured for two different samples of gas.
		The volume of several different amounts of gas was measured, all at the same temperature and pressure.
	home.gwi.net /~dakeller/Chem/Lab-Illustrate.Gas.Laws.html (1387 words)

	Gas Laws
		From this, we derive the molar volume of a gas (volume/moles of gas).
		Using the Ideal Gas Law, and comparing the pressure of one gas to the total pressure, we solve for the mole fraction.
		As we stated earlier, the shape of a gas is determined entirely by the container in which the gas is held.
	www.shodor.org /unchem/advanced/gas (1034 words)

	Environmental Protection Agency > Basic Concepts in Environmental Sciences > Module 2 > Ideal Gas Law
		The ideal gas law is one of the fundamental principles used in calculations involving gas flow in air pollution-related work.
		The ideal gas law is accurate as long as the pressures are relatively similar to normal ambient atmospheric pressures.
		The ideal gas law applies to mixtures of gases as well as to pure gases.
	www.epa.gov /eogapti1/module2/idealgas/idealgas.htm (711 words)

	Ideal Gas
		An ideal gas is an assembly of atoms or molecules which interact with each other only via occasional collisions.
		In fact, the amount of entropy of an ideal gas at fixed temperature and pressure is calculated to have a non-linear dependence on the number of gas molecules.
		Imagine a container of gas of a certain type, temperature, and pressure which is divided into two equal parts by a sheet of material.
	www.physics.nmt.edu /~raymond/classes/ph13xbook/node240.html (564 words)

	Chem1 Properties of gases: the basic gas laws
		In an industrial process, a gas confined to a volume of 1 L at a pressure of 20 atm is allowed to flow into a 12-L container by opening the valve that connects the two containers.
		If a gas contracts by 1/273 of its volume for each degree of cooling, it should contract to zero volume at a temperature of –273°C. This, of course, is the absolute zero of temperature, and this extrapolation of Charles' law is the first evidence of the special significance of this temperature.
		An ideal gas is defined as a hypothetical substance that obeys the ideal gas equation of state.
	www.chem1.com /acad/webtext/gas/gas_2.html (1791 words)

	Kinetic Books - Virtual Labs Design Philosophy
		The ideal gas lab focuses on data gathering and analysis.
		The students see the particles striking the container wall and "see" how their gas property specifications affect the collisions with the wall and the pressure the wall exerts on the gas.
		At the end, they are asked to use their data to formulate the ideal gas law, complete with the constant.
	kineticbooks.com /products/labs/labs_design.html (902 words)

	Chapter 5, Gases
		Ideal Gas: strictly obeys the Gas Laws (i.e., no intermolecular attractions, point masses, elastic collisions, etc.) Most gases obey this at low pressures.
		V = a n, at constant pressure and temperature, the volume of a gas is directly proportional to the number of moles.
		Gas laws predict properties of gases but do not explain why they behave as they do.
	www.lancaster.k12.oh.us /joe_didomenico/apchem/chapter5/gases.htm (1178 words)

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