What is the 1st point of the Kinetic Molecular Theory?
particles are tiny compared to the great distances between them
What is the 2nd point of the Kinetic Molecular Theory?
gas particles are in constant, rapid, random motion
What is the 3rd point of the Kinetic Molecular Theory?
particles do not interact with each other except during momentary collisions
What is the 4th point of the Kinetic Molecular Theory?
collisions between gas particles and their containers are perfectly elastic
What is the 5th point of the Kinetic Molecular Theory?
the kinetic energy is directly proportional to the temperature
What is diffusion?
spontaneous, uniform mixing, caused by particle motion
What is effusion?
when gas particles pass through a tiny opening into an evacuated chamber or space
What is Graham’s law of effusion?
the rate of effusion for a gas is inversely proportional to the square root of its molar mass
What is permeability?
how easily a fluid can move through the spaces between the particles in the substance
What is compressibility?
the physcial ability of a gas to decrease its volume to fit its container
What is expansibility?
the physical ability of a gas to expand without limit in an environment of lower pressure
What is pressure?
the average force exerted per unit area when molecules collide against a boundary
What is the standard temperature and pressure?
273K and 1 atm
1atm=…
760mmHg=760torr=14.7psi=101325Pa=101.3kPa
What is Boyle’s Law?
the volume is inversely related to the pressure if the temperature is held constant
What is Charles’ Law?
when the pressure is held constant, the temperature and the volume are directly related
What is Boyle’s Law formula?
P1V1=P2V2
What is Charles’ Law formula?
V1/T1=V2/T2
What is Gay-Lussac’s Law?
pressure is directly proportional to temperature, when held in a constant volume
What is Gay-Lussac’s formula?
P1/T1=P2/T2
What is the combined gas law?
combinations of Boyle’s, Charles’, and Gay Lussac’s Law
What is the combined gas formula?
P1V1/T1=P2V2/T2
What is Dalton’s Law of Partial Pressures?
the total pressure of a mixture of gases equals the sum of the partial pressures
What is Dalton’s Law of Partial Pressures formula?
Ptotal=P1+P2+P3…
