## Boltzmann Equation

Volume: $\Delta S = nR\ln \frac{V_{2}}{V_{1}}$
Temperature: $\Delta S = nC\ln \frac{T_{2}}{T_{1}}$

JennyCKim1J
Posts: 51
Joined: Fri Sep 29, 2017 7:04 am

### Boltzmann Equation

Is Kb simply equal to R, or is it only when we are calculating W for 1 mole? If it is only for 1 mole, what is Kb?

manasa933
Posts: 72
Joined: Fri Sep 29, 2017 7:04 am

### Re: Boltzmann Equation

Kb is equal to 1.381 x 10^-23 J/K

Hubert Tang-1H
Posts: 44
Joined: Thu Jul 27, 2017 3:00 am

### Re: Boltzmann Equation

Kb is a constant, at 1.381 x 10^-23 J/K. When calculating W for 1.00 mole where there are n states for each molecule, you raise n to the power of 6.02x10^23 (Avagadro's Number), so for 1.00 mole, you can
have Entropy S= (6.02x10^23) x Kb ln n, where there are n states for the molecule.