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Dalton’s Law. The total pressure of a gas mixture is the sum of the partial pressure of the components of the mixture. Formulas. P T =P a + P b P T =P water + P gas P T = n T RT =( n a + n b ) RT V V P a =( n a RT)/ V. Kinetic Theory of Gases.
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Dalton’s Law The total pressure of a gas mixture is the sum of the partial pressure of the components of the mixture.
Formulas • PT =Pa + Pb • PT =P water+ Pgas • PT = nT RT =(na + nb) RT V V • Pa=( na RT)/V
Kinetic Theory of Gases • Gases are mostly empty space. • Gas molecules are in constant, chaotic motion. • Collisions are elastic. • Gas pressure is caused by collisions of molecules with the walls of the the container.
Graham’s Law of Effusion Rate of effusion B/Rate of effusion A = (Molar Mass A/Molar Mass B)1/2
In general, the closer a gas is to the liquid state, the more it will deviate from the ideal gas law. • High pressure • Low temperature
Ch 5 Problems • 42, 44, 50, 54, 56, 62, 64