## Entropy [ENDORSED]

$\Delta S = \frac{q_{rev}}{T}$

Sabrina Fardeheb 2B
Posts: 51
Joined: Sat Jul 22, 2017 3:00 am
Been upvoted: 1 time

### Entropy

What is the difference between the entropy we have been discussing in class and positional (residual) entropy? Lavelle briefly mentioned the latter in the first lecture of week 3 and was unsure if we should place any importance on it. Thanks!

Priyanka Bhakta 1L
Posts: 50
Joined: Fri Sep 29, 2017 7:04 am

### Re: Entropy  [ENDORSED]

In lecture we've been looking at entropy in a less general, "disorderly" way and more as a number we can find to represent entropy. Thus, we've kind of been looking at statistical entropy (entropy calculated from the Boltzmann formula). Positional/residual entropy is based more in calculating or figuring out the structure of the substance and its organization and using the extent of the organization and position of molecules to coincide with its entropy.