Summary: H-Theorem
Consider a fixed volume of spatially
homogeneous (no variation in physical space)
simple dilute monatomic gas free of any external
force.
The Boltzmann equation for this case takes form:
Over a small time interval f changes to f+df and
the relative change is
f
t
=n-

0
4
f *
f 1
*
- f f 1 vr

Source: Alexeenko, Alina - School of Aeronautics and Astronautics, Purdue University

Collections: Engineering