Thermodynamics: Entropy

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Elizabeth Flores
Posts: 11
Joined: Mon Jan 26, 2015 2:17 pm

Thermodynamics: Entropy

Postby Elizabeth Flores » Sat Jan 16, 2016 11:48 pm

Can someone explain how an increase in entropy will result in gas expansion?

Sandeep Gurram 2E
Posts: 42
Joined: Fri Sep 25, 2015 3:00 am

Re: Thermodynamics: Entropy

Postby Sandeep Gurram 2E » Sun Jan 17, 2016 12:25 am

I think it is more along the lines of an increase in the expansion of gas will cause an increase in entropy. Entropy is a measure of disorder. Now, there is thermal disorder, disorder from increasing the thermal motion of molecules (heating a substance).

There is also positional disorder, which is what you're referring to in gas expansion. When a gas expands, it increases this positional disorderliness by dispersing the molecules of a particular substance over a greater volume and therefore the entropy increases.

Hope that helped!

Elizabeth Flores
Posts: 11
Joined: Mon Jan 26, 2015 2:17 pm

Re: Thermodynamics: Entropy

Postby Elizabeth Flores » Sat Jan 23, 2016 6:23 pm

Yes it did, thank you!


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