Entropy Changes in Chemical Reactions (Section)
The standard entropies at 298 K for certain group 4A elements are: C(s, diamond) = 2.43 J/mol-K, Si1s2 = 18.81 J/ mol-K, Ge1s2 = 31.09 J/mol-K, and Sn1s2 = 51.818 J/mol-K. All but Sn have the same (diamond) structure. How do you account for the trend in the S° values?
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