Chapter%2010 - 1 Properties of Gases 2 Properties of Gases...

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1 Properties of Gases 2 Properties of Gases Indefinite Volume Indefinite Shape Compressible Mixtures are Homogeneous Diffusion 3 Kinetic Molecular Theory Gases consist of small particles, molecules, which are in continuous, random motion The volume of all the molecules together make up is negligible compared to the total volume in which the gas is contained Attractive forces between molecules is negligible Collisions between molecules are perfectly elastic The average kinetic energy of all gases is the same at the same temperature
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4 Measurable Properties Temperature Volume Amount Pressure ˚ Force per unit area Units of mm of Hg(torr) or atm 1 atm = 760 torr = 101 kPa 5 Measuring Pressure 6 Manometer
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7 Gas Laws Boyle’s- V α 1/P at constant temperature and constant amount, moles(n) ˚ V=k(1/P) or VP=k k is a constant Charles’s - V α T at constant P and n ˚ V/T=k’ Avogadro’s - V α n at constant P and T
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Chapter%2010 - 1 Properties of Gases 2 Properties of Gases...

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