## Thermal and positional disorder

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

Kate Zeile 2D
Posts: 39
Joined: Sat Jul 22, 2017 3:01 am

### Thermal and positional disorder

The textbook refers to thermal disorder as disorder arising from the thermal motion of the molecules and positional disorder as the disorder relating to the locations of the molecules.
Can these be thought of as types, or subcategories, of entropy? If so, are there any other types?

Anika_Patel_1G
Posts: 32
Joined: Fri Sep 29, 2017 7:06 am

### Re: Thermal and positional disorder

Rather than types, thermal and positional disorder can be thought of components of entropy. These are characteristics that describe entropy. If a system were to increase in entropy, its atoms would collide more vigorously and randomly, resulting in the energy of the system to disperse randomly. The increased thermal motion and random positions of the molecules leads to an increase of entropy or disorder.

Wenxin Fan 1J
Posts: 53
Joined: Thu Jul 13, 2017 3:00 am

### Re: Thermal and positional disorder

Thermal motion and positional disorder are aspects of entropy that can be used to describe the amount of entropy or be used to compare the entropy that an object has.