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14 Cards in this Set

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Kinetic Molecular Theory
1. Ignore volume
2. No intermolecular forces (elastic collisions)
3.KE ~ T
Ideal gas
Gas that satisfies all requirements of kinetic molecular theory
STP
standard temperature and pressure -0 C (273 K) and 1 atm (760 mm Hg = 760 torr)
Ideal Gas Law
PV= nRT
P1V1/T1= P2V2/T2
Charles Law
If the pressure is constant, volume is proportional to temperature
V1/T1 = V2/T2
Boyles Law
if the temperature is constant, pressure is inversely proportional to volume
P1V1=P2V2
Constant volume
Pressure is proportional to temperature
P1/T1=P2/T2
1 mole ideal gas
22.4 L at STP
Daltons Law of Partial Pressures
Total pressure is sum of partial pressures of all the constituent gases
Partial pressure of gas
Mole fraction * total pressure
Effusion
The escape of gas molecules through a tiny hole to the vacuum
Diffusion
Mixing of the gases (not vacuum)
Grahams Law of Effusion
rate of effusion of gas A/rate of effusion of gas B = sqrt (molar mass of gas B/molar mass of gas A)
At what conditons do gases approach ideal gases behavior?
low pressure and high temperature