Lecture_13 - Forms of expressing the Ideal Gas Law: Keep n...

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1 Forms of expressing the Ideal Gas Law: Keep n constant : Keep T constant : Keep P constant : L = = = 2 2 2 1 1 1 const. T V P T V P T PV 11 2 2 12 const. PV PV nn n == = L const. VV V nT nT n T = L PV = n R T In dealing with changes in state, always place the variables that change on one side of the equal sign, and the constants on the other. 6. The Kinetic Molecular Theory (KMT) Idea: to account for the properties of an ideal gas (i.e. predict the gas laws), from a study of the gas behavior at the molecular level. We need a molecular model: Kinetic Molecular Theory (KMT)
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2 Postulates of the KMT Model: 1. The individual gas molecules have zero volume (the molecules are point masses). 2. Particles are in constant random motion . Collisions of particles with the walls are the cause of the pressure exerted by the gas. 3. The particles exert no forces on each other. No transfer of momentum or kinetic energy during collisions. Collisions are elastic.
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This note was uploaded on 09/07/2010 for the course FAS chem 201 taught by Professor Sultan during the Summer '07 term at American University of Beirut.

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Lecture_13 - Forms of expressing the Ideal Gas Law: Keep n...

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