A constant, k, involved in the equation for average velocity. k = 1.38×10-23 J/K
Diffusion is the spread of one substance through another.
Effusion is the rate at which a gas passes through a small hole into a vacuum.
Ek = 1/2mv2
Kinetic molecular theory
A theory that models the interaction between individual gas molecules. See the summary for more details.
Maxwell-Boltzmann speed distribution
The distibution attained when molecule speed is set against the number of molecules sharing that speed.
Mean free path
The mean distance a molecule travels before it impacts another molecule; given the huge number of collisions in a gas, the mean free path is vastly smaller than any typical room or container. The equation for mean free path:
The most probable velocity at which the most molecules in a gas travel. The formula for most probable velocity is:
vp = =
Root mean square velocity
An equation to measure the typical velocity of molecules in a gas.
vrms = = =
|Kinetic energy||Ek = 1/2mv2|
|Mean free path||
|Formule for most probable velocity||
|Formula for root mean square velocity||