## Boltzmann Equation

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

Philip
Posts: 100
Joined: Sat Sep 07, 2019 12:16 am

### Boltzmann Equation

I'm confused about the relationship between Boltzmann's constant and the gas constant.

Nicholas Chin 1G
Posts: 100
Joined: Thu Jul 11, 2019 12:17 am

### Re: Boltzmann Equation

R = Nk, where N is avogadro's constant and k is boltzmann's constant.

Julie Park 1G
Posts: 100
Joined: Thu Jul 25, 2019 12:15 am

### Re: Boltzmann Equation

Both are used to find entropy (S), but in this class, their usage will depend on the context (info given)

The equation involving the boltzmann constant (kB), $S=k_blnW$
should be used when you're given the number of states and species,

while equations such as $\Delta S = nRln\frac{V2}{V1}$, which involve the gas constant R will be used when particular values such as volume are given

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