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Why do larger molecules have higher entropies?

Which of these solid substances is likely to have the greatest standard entropy? Use of
the data booklet is not required.

A SnO
B SnO2
C SnBr2
D SnBr4

the answer is D but to me this is counter intuitive as SnO will form the weakest Intermolecular forces so will be less ordered and thus have higher entropy?

Please Help

Reply 1

EierVonSatan

The bigger the molecule the more internal parts it has (protons, neutrons, electrons) so the more different arrangements it can exist in => more disorder => higher entropy