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	Ideal gas - Wikipedia, the free encyclopedia
		An ideal gas or perfect gas is a hypothetical gas consisting of identical particles of negligible volume, with no intermolecular forces.
		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.
	en.wikipedia.org /wiki/Ideal_gas (934 words)

	Gas constant - Wikipedia, the free encyclopedia
		The gas constant (also known as the universal or ideal gas constant, usually denoted by symbol R) is a physical constant used in equations of state to relate various groups of state functions to one another.
		The gas constant occurs in the simplest equation of state, the ideal gas equation, as follows:
		The gas constant is conversion factor between gas units.
	en.wikipedia.org /wiki/Molar_gas_constant (191 words)

	General Chemistry Online: Glossary: Gases
		Gas molecules in a container escape from tiny pinholes into a vacuum with the same average velocity they have inside the container.
		A gas whose pressure P, volume V, and temperature T are related by PV = nRT, where n is the number of moles of gas and R is the ideal gas law constant
		A mercury or oil manometer measures gas pressure as the height of a fluid column the gas sample is able to support.
	antoine.frostburg.edu /chem/senese/101/gases/glossary.shtml (975 words)

	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.
		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.
	hyperphysics.phy-astr.gsu.edu /hbase/kinetic/idegas.html (1049 words)

	CHEM 345.001 Principles of Physical Chemistry- FALL 2004-Study Guide
		Ideal gas law written in terms of the molar mass of the gas or the density of the gas.
		Assumptions of the kinetic molecular theory of gases and its use in the derivation of the ideal gas law.
		In a sample of gas, be able to calculate the average speed, mean free path, collision frequency, time of flight and be able to describe how these are affected by changes in pressure, temperature and molar mass of the gas.
	www.towson.edu /~debye/chem345/F2004/345_F04_st.html (1474 words)

	The laws list: I
		The constant that appears in the ideal gas equation.
		The pressure of an ideal gas is inversely proportional to the volume of the gas at constant temperature.
		The volume of an ideal gas is directly proportional to the thermodynamic temperature at constant pressure.
	www.alcyone.com /max/physics/laws/i.html (152 words)

	Mr. Hole's Online Chemistry Glossary: I (Site not responding. Last check: 2007-10-08)
		ideal gas: a model in which gas molecules are treated as though they were geometric points exerting no force on each other; gas that behaves as predicted by kinetic molecular theory.
		ideal gas constant (R): a term in the ideal gas law equation, which has the value 0.0821 L atm ⁄ K mol.
		ionization constant: the equilibrium constant for the ionization of a weak electrolyte.
	home.earthlink.net /~mrhole/chem/glossary/i.html (728 words)

	Gas Laws: Ideal Gas Law and the Gas Constant (Site not responding. Last check: 2007-10-08)
		For a constant amount of gas at a constant pressure, the volume of the gas is directly proportional to the absolute temperature.
		In effect, the pressure of the gas should be directly proportional to both the molar concentration and the temperature.
		Use the slope of the plot to determine the gas constant in units of L atm mole
	www.chm.davidson.edu /ChemistryApplets/GasLaws/GasConstant.html (306 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.
		Suppose you were given that 8.00 moles of a gas occupies a volume of 4.00L at a constant pressure and temperature.
		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.
	www.towson.edu /~ladon/gases.html (2345 words)

	Determining the Value of the Ideal Gas Constant (Site not responding. Last check: 2007-10-08)
		An ideal gas is a theoretical idea – a gas in which there are no attractive forces between the molecules, and in which the molecules take up no space.
		When the heights are the same, the gas pressure inside the tube is the same as the atmospheric pressure in the room.
		This is n for use in the ideal gas equation.
	www.carlton.paschools.pa.sk.ca /chemical/GasLaws/Ideal_Gas_Constant.htm (1203 words)

	[No title]
		Ideal Gas Law & Surface Area to Volume To demonstrate that you have mastered this exercise be prepared to turn in one page containing your heading and a table and the graphs constructed in answering question 8.
		Messing with the Ideal Gas Law The ideal gas Eqnuation is V= f(nRT,P) [Eqn 14.1] where V=volume; n=moles of gas, R=ideal gas constant of whose value and units depend upon the other units, T=temperature (almost always expressed in û Absolute=ûKelvin), and P=the pressure.
		Assume one mole of gas at a pressure of one atmosphere (R=0.08206 L.
	www.csubak.edu /~dhinds/Sci294/E14GasLaws.doc (678 words)

	Equations of State
		The ideal gas law is often used as the first order description of any gas although this practice is questionable in the case of critical opalescent conditions.
		The virial equation is popular because the constants are readily obtained using a perturbative treatment such as from statistical mechanics.
		Even when a liquid is described with an equation similar to a gas equation, the constants in the equation will result in much less dramatic changes in volume with a change in temperature.
	www.ccl.net /cca/documents/dyoung/topics-orig/eq_state.html (2066 words)

	Gas Laws
		In this equation, R is a proportionality constant known as the ideal gas constant and T is the absolute temperature.
		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.
		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)

	Properties of Ideal Gases (Site not responding. Last check: 2007-10-08)
		The ideal gas law is obeyed to a good approximation by most gases at high temperatures and low pressures.
		It is, in fact, from the ideal gas law that the idea of an absolute temperature and absolute zero first arose.
		In order to determine the magnitude of the ideal gas constant R, an experiment must relate the number of moles of a gas (that is, its mass) to the volume of that same gas at a given temperature and pressure.
	chemlabs.uoregon.edu /Classes/jlong/CH238/ideal.html (3045 words)

	All about the gas laws
		Question: If we have 4 L of methane gas at a pressure of 1.0 atm, what will be the pressure of the gas if we squish it down so it has a volume of 2.5 L? Answer: Let's plug the numbers we've been given into the problem.
		The ideal gas law is an equation of state, which means that you can use the basic properties of the gas to find out more about it without having to change it in any way.
		Where P is the pressure of the gas (either in atmospheres or kilopascals), V is the volume (in liters), n is the number of moles, R is the ideal gas constant, and T is the temperature (in Kelvins).
	misterguch.brinkster.net /gaslaws.html (2180 words)

	Ideal gas (Site not responding. Last check: 2007-10-08)
		The equation of state of a classical ideal gas is the ideal gas law.
		The ideal gas law is an extension of primitive experimentally discovered gas laws.
		Under such conditions, an ideal gas of bosons will be governed by Bose-Einstein statistics and the distribution of energy will be in the form of a Bose-Einstein distribution.
	www.worldhistory.com /wiki/I/Ideal-gas.htm (394 words)

	General Chemistry Online: Glossary:
		All molecules in an "ideal solution" interact in exactly the same way; the solvent-solvent, solvent-solute, and solute-solute intermolecular forces are all equivalent.
		For example, a curve on a plot of gas pressure measured at different temperatures in a rigid container is an isochore.
		For example, curves on a plot of gas pressure measured at different volumes in a constant temperature bath are isotherms.
	antoine.frostburg.edu /chem/senese/101/glossary/i.shtml (1335 words)

	The Ideal Gas Equation (Site not responding. Last check: 2007-10-08)
		An "ideal gas" is one whose physical behavior is accurately described by the ideal-gas equation
		The pressure of the gas in the flask is 2.8 atmospheres and the temperature is recorded to be 53.6 °C. How many moles of O
		A 1 liter sample of air at room temperature (25 °C) and pressure (1 atm) is compressed to a volume of 3.3 mls at a pressure of 1000 atm.
	wine1.sb.fsu.edu /chm1045/notes/Gases/IdealGas/Gases04.htm (440 words)

	Ideal Gas
		Properties of the gaseous state predicted by the ideal gas law are within 5% for gases under ordinary conditions.
		One of the common corrections made to the ideal gas law is the van der Waal's equation, but there are also other methods dealing with the deviation of gas from ideality.
		The gas constant R is such a universal constant for all gases that its values are usually listed in the "Physical Constants" of textbooks and handbooks.
	www.science.uwaterloo.ca /~cchieh/cact/c120/idealgas.html (1445 words)

	Workshop Skills
		Pressure, volume, and temperature are fundamental physical quantities used to describe an ideal gas.
		If we hold the volume of an ideal gas constant by putting it in a container with rigid walls (like a metal can) and increase the temperature of the gas, describe what happens to the third quantity, the pressure of the gas.
		Design and perform an experiment to test how the pressure of an ideal gas depends on the absolute temperature when the volume of gas is held constant.
	www.physics.rutgers.edu /ugrad/labs/1gas.html (543 words)

	CHAPTER 10: GASES (Site not responding. Last check: 2007-10-08)
		Collisions between the gas molecules with one another or with the walls of the container are perfectly elastic.
		R is the ideal gas constant and is =.0821LATM/molK
		Calculate the MW of an unknown gas that effuses at a rate of 83.0 ml/min if carbon dioxide (44.0 g/mol) effuses at a rate of 102 ml/min.
	arts-sciences.cua.edu /chem/GBREWER/CHAP10.html (809 words)

	Lab: Ideal Gas Laws (Site not responding. Last check: 2007-10-08)
		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.
	kaffee.netfirms.com /Chem/Lab-Illustrate.Gas.Laws.html (1387 words)

	Chem 110: Experiment 5. (Site not responding. Last check: 2007-10-08)
		By adjusting the level of water in the Florence flask to match that in the buret, we are ensuring that the pressure inside the buret is equal to atmospheric pressure.
		gas is collected over water, and water has a vapor pressure and thus we have some gaseous water in there as well.
		When gas evolution has ceased, adjust the level of water in the Florence flask so that it is at the same level as the water in the buret.
	colossus.chem.umass.edu /genchem/chem110/110_Experiment_5.htm (756 words)

	ME301 - Ideal Gas Mixtures (Site not responding. Last check: 2007-10-08)
		is mixed with 2 kg of an unknown gas.
		Determine (a) the molecular mass of the unknown gas, and (b) the mole fraction of each gas present in the mixture.
		The constant volume specific heat of the mixture, is the sum of the mass fractions of each components times their specific heat of each component.
	www.uwm.edu /Course/612-301-001/Examples/week12.html (352 words)

	Ideal Gas Law - Thermodynamics - Engineers Edge (Site not responding. Last check: 2007-10-08)
		The constant in the above equation is called the ideal gas constant and is
		The individual gas constant (R) may be obtained by dividing the universal gas constant (Ro) by
		The ideal gas law is utilized by engineers working with gases because it is simple to use and
	www.engineersedge.com /thermodynamics/ideal_gas_law.htm (287 words)

	Specific Heat of an Ideal Gas
		As previously noted, the specific heat of any substance is amount of heating required per unit mass to raise the temperature of the substance by one degree.
		Thus, the specific heat at constant volume of an ideal gas is
		In a constant pressure process the ideal gas law (24.19) predicts that
	www.physics.nmt.edu /~raymond/classes/ph13xbook/node250.html (142 words)

	Chemistry 1B Fall 1998: Key Points Ch. 5 (Site not responding. Last check: 2007-10-08)
		For an ideal gas the forces between molecules are insignificant.
		The average kinetic energy of molecules in a gas is proportional to temperature and is independent of the mass of the molecule.
		In chemical reactions that involve gases, the stoichiometric coefficients are used to determine the number of moles of each gas to be used in the ideal gas equation.
	www.chemistry.ucsc.edu /teaching/Fall98/Chem1B/keypoints5.html (213 words)

	Chemistry Help - Ideal Gases - Technical Tutoring
		Typically, the space between molecules in the gas phase is large compared with the size of the molecules.
		Consider a sample of gas inside a piston cylinder (a cylinder with one movable end cap so the volume inside the piston can be changed).
		0.105 moles of an ideal gas occupy 5.00 L at a pressure of 0.975 atm.
	www.hyper-ad.com /tutoring/chemistry/ideal_gases_1.html (1153 words)

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