Gen Chem

Which of the following conditions MUST be true for the entropy of a pure solid to be zero?

a) T must be 0 K
b) The solid must be crystalline and not amorphous
c)the solid must be perfectly ordered
d) the solid form must be an element

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  1. a)

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  2. T=0K
    if
    S=0 (s is entropy)

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  3. It can be more than one of these choices, its a "check all that apply" question. Are there any other options that must apply for S=0??

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  4. See here:

    http://en.wikipedia.org/wiki/Residual_entropy

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