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Posted: Fri Feb 02, 2018 3:45 pm
Why is it that molecules with a greater dipole moment have smaller residual entropies?
Re: Residual Entropy
Posted: Sat Feb 03, 2018 11:53 am
A greater dipole moment means that the molecules experience more attraction to one another and lie head-to-tail in a more orderly fashion, so their residual entropy is lower. Molecules with smaller dipole moments can be in either direction, resulting in a higher residual entropy.
Re: Residual Entropy [ENDORSED]
Posted: Sat Feb 03, 2018 12:30 pm
Lower dipole moments mean that molecules are able to move more freely as opposed to being held tightly by stronger dipole moments. Moving freely= more positions can be occupied --> higher residual entropy