What is residual entropy?

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John_Richey_4A
Posts: 69
Joined: Fri Sep 28, 2018 12:27 am

What is residual entropy?

Postby John_Richey_4A » Sat Feb 23, 2019 7:40 pm

title

Ricky Ma DIS 4E
Posts: 72
Joined: Fri Sep 28, 2018 12:27 am

Re: What is residual entropy?

Postby Ricky Ma DIS 4E » Sat Feb 23, 2019 8:36 pm

Residual entropy is the entropy that remains after molecules stop moving at 0 degrees kelvin. The entropy lies within the orientation of the atoms of the molecule.

Mukil_Pari_2I
Posts: 87
Joined: Fri Sep 28, 2018 12:29 am

Re: What is residual entropy?

Postby Mukil_Pari_2I » Sat Feb 23, 2019 9:35 pm

Residual entropy is the difference in entropy between a non-equilibrium state and crystal state of a substance close to absolute zero.

chrisavalos-2L
Posts: 63
Joined: Fri Sep 28, 2018 12:18 am

Re: What is residual entropy?

Postby chrisavalos-2L » Sat Feb 23, 2019 10:08 pm

The residual entropy is the entropy that remains in a substance at 0 degrees Kelvin, this would usually be calculated for a perfect crystal.

Eva Zhao 4I
Posts: 101
Joined: Sun Sep 29, 2019 12:16 am

Re: What is residual entropy?

Postby Eva Zhao 4I » Mon Feb 10, 2020 1:14 pm

To add on, the only time when a molecule would have no entropy is when you have a molecule at 0 K that’s perfectly ordered. Otherwise, molecules at 0 K would still have entropy due to the concept of residual entropy, which is explained by others above.

Anushka Chauhan2B
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Joined: Sat Aug 24, 2019 12:16 am

Re: What is residual entropy?

Postby Anushka Chauhan2B » Mon Feb 10, 2020 1:55 pm

The residual entropy is the entropy that is in a substance at 0 degrees Kelvin

sarahsalama2E
Posts: 164
Joined: Fri Aug 30, 2019 12:16 am

Re: What is residual entropy?

Postby sarahsalama2E » Mon Feb 10, 2020 2:08 pm

is residual entropy the same thing as positional entropy? Also how does residual entropy employ statistics? Is it because of the degeneracy term that is included in the S= kblnW equation?

Joanne Lee 1J
Posts: 100
Joined: Thu Jul 25, 2019 12:15 am

Re: What is residual entropy?

Postby Joanne Lee 1J » Mon Feb 10, 2020 5:30 pm

Residual entropy is the difference in entropy between a non-equilibrium state and crystal state of a substance close to absolute zero.

Alison Trinh 1E
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Joined: Thu Jul 25, 2019 12:16 am

Re: What is residual entropy?

Postby Alison Trinh 1E » Sun Feb 16, 2020 9:11 pm

Is there a difference between residual and positional entropy?

Rafsan Rana 1A
Posts: 55
Joined: Sat Aug 24, 2019 12:16 am

Re: What is residual entropy?

Postby Rafsan Rana 1A » Sun Feb 16, 2020 11:08 pm

Yes, positional entropy is a result of change in volume, for example where a gas expands in a larger volume, while residual entropy is I believe a result of dipole dipole interactions.

Anushka Chauhan2B
Posts: 51
Joined: Sat Aug 24, 2019 12:16 am

Re: What is residual entropy?

Postby Anushka Chauhan2B » Sun Feb 16, 2020 11:10 pm

Residual entropy is the entropy that remains after molecules stop moving (due to the orientation of the atoms of the molecule) at 0 degrees kelvin

RichBollini4G
Posts: 100
Joined: Wed Sep 18, 2019 12:18 am

Re: What is residual entropy?

Postby RichBollini4G » Wed Feb 19, 2020 12:14 pm

Mukil_Pari_2I wrote:Residual entropy is the difference in entropy between a non-equilibrium state and crystal state of a substance close to absolute zero.


thank you


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