What is residual entropy?

[John_Richey_4A]

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[Ricky Ma DIS 4E]

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]

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

[chrisavalos-2L]

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]

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]

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

[sarahsalama2E]

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]

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]

Is there a difference between residual and positional entropy?

[Rafsan Rana 1A]

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]

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]

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

thank you

[Karen Elrayes 1L]

At 0 Kelvin it is thought that there was no energy at all or "absolute zero" but residual entropy still occurs because of the different forms the atoms can arrange themselves in a molecule.

[John Calonia 1D]

Residual entropy is the disorder present within a system that is implicit with the different positions the molecules within the substance can occupy. This can be quantified by the equation W=possible oritenations^number of particles

[Vanshika Bhushan 1A]

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.

[Frankie Xu 2H]

Residual entropy is the entropy of a compound when at no energy that comes from positional disorder.

[eriko vong 3D]

Residual entropy is the remaining energy at 0 Kelvin (when the molecules stop moving).