## Boltzmann Equation

Boltzmann Equation for Entropy: $S = k_{B} \ln W$

Jasleen Kahlon
Posts: 52
Joined: Wed Nov 21, 2018 12:19 am

### Boltzmann Equation

I'm a little confused as to what exactly the Boltzmann equation is trying to explain in terms of entropy. When is it usually applied?

Kaylee Sepulveda 4G
Posts: 100
Joined: Thu Jul 11, 2019 12:16 am

### Re: Boltzmann Equation

Boltzmann's equation is an equation relating the entropy S of an ideal gas to the quantity W, the number of real microstates corresponding to the gas' macrostate: S = kB ln W
where kB is the Boltzmann constant (also written as simply k) and equal to 1.38 × 10−23 J/K.