Positional Entropy

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Sylvester_Foley_3G
Posts: 11
Joined: Wed Sep 21, 2016 2:59 pm

Positional Entropy

Postby Sylvester_Foley_3G » Sun Jan 22, 2017 2:08 pm

Hello,

I believe that I have a good understanding of what Positional Entropy is, and how it is related to the Second Law of Thermodynamics, but what I do not understand is why it does not take into account Thermal Entropy?

I know that Dr. Lavelle went over an example that had to deal with degeneracy (W), in which he concluded that the fewer molecules (N) involved in a degeneracy problem, the less Thermal Entropy it has.

Can someone let me know what he meant by all of this?

Thank you in advance.

Sylvester :)

Lyndon_Bui_3J
Posts: 27
Joined: Sat Jul 09, 2016 3:00 am

Re: Positional Entropy

Postby Lyndon_Bui_3J » Mon Jan 23, 2017 9:26 pm

I think positional and thermal entropy are based on different things, so they are both entropies but they are not the same. Therefore, positional entropy depends solely on the position, while thermal entropy is more dependent on the movement of the particles. I think thermal entropy depends on temperature, and the more particles, the more thermal motion and thus the more thermal entropy.


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