Entropy Question  [ENDORSED]


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Abel Thomas 2C
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Entropy Question

Postby Abel Thomas 2C » Fri Jan 26, 2018 2:06 pm

Why are there a greater number of states when entropy increases? Can someone specify what this means?

William Xu Dis 1D
Posts: 31
Joined: Fri Sep 29, 2017 7:05 am

Re: Entropy Question

Postby William Xu Dis 1D » Fri Jan 26, 2018 3:37 pm

Entropy is a measure related the number of possible configurations that a thermodynamic system, which also means it is a measure related to the number of states the system can be in. The specific relation is given by the Boltzmann equation, S = Kbln(W), but the main point is that it is a related measurement of the number of states, just as meters is a measurement of distance.

Harrison Wang 1H
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Joined: Fri Sep 29, 2017 7:07 am

Re: Entropy Question

Postby Harrison Wang 1H » Fri Jan 26, 2018 4:16 pm

Take for example water vapor compared to water as a liquid. In water vapor, the molecules are able to move much more freely and therefore contain a larger number of states than the molecules in the liquid, which are much more constrained and limited in their movements.

Nick L 2C
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Joined: Fri Sep 29, 2017 7:05 am

Re: Entropy Question  [ENDORSED]

Postby Nick L 2C » Fri Jan 26, 2018 5:07 pm

As a sample expands to a larger volume, there is more physical space and therefore more possible arrangements of the sample that fit within the space. Entropy is the quantification of this increase in degeneracy, or the number of possible positions.


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