## Boltzmann Equation

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

Siddiq 1E
Posts: 106
Joined: Fri Aug 09, 2019 12:15 am

### Boltzmann Equation

Can someone explain when the boltzmann equation is more useful than the other methods to calculate entropy?

Vincent Leong 2B
Posts: 207
Joined: Fri Aug 09, 2019 12:15 am

### Re: Boltzmann Equation

Only when we consider degeneracy and the question mentions something about possible energy states.

Tiffany_Chen 2K
Posts: 106
Joined: Fri Aug 30, 2019 12:15 am

### Re: Boltzmann Equation

Yep, in terms of molecular states the Boltzmann equation will be useful for calculating entropy (statistical). The other equation for entropy is good for thermodynamics as a whole.

Matt F
Posts: 100
Joined: Sat Aug 17, 2019 12:17 am

### Re: Boltzmann Equation

As mentioned above, the Boltzmann Equation is helpful when we are given or can calculate degeneracy (W). The Boltzmann equation also just solves for S and not delta S, whereas the other equations solve for delta S or a change in S