## Potential/Residual Entropy

$w=-P\Delta V$
and
$w=-\int_{V_{1}}^{V_{2}}PdV=-nRTln\frac{V_{2}}{V_{1}}$

Colette Ussery 3L
Posts: 19
Joined: Wed Sep 21, 2016 2:58 pm

### Potential/Residual Entropy

I noticed on page 29 of the course reader it mentions that the equation S = kb ln W is the equation "to find Potential/Residual Entropy. This ignores thermal entropy." I was wondering what that meant because that is the only equation for entropy given? Will we only need to find potential entropy?

Lucy Nakashima 1E
Posts: 21
Joined: Sat Jul 09, 2016 3:00 am

### Re: Potential/Residual Entropy

The equation given doesn't account for the thermal entropy of molecules and we haven't done any problems that deal with calculating thermal entropy so I think we only need to know how to calculate potential entropy using S = kB * ln W