LECTURE PHYSICAL CHEMISTRY 3rd EDITION ROBERT G. MORTIMER

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Absolute Entropies
According to the third law as stated by Lewis,
we can consistently set the entropy of any
pure perfect crystalline substance equal to zero
at zero temperature. The entropy change
to bring a sample of a pure substance from
zero temperature in a perfect crystalline
form to some specified state is called the
absolute entropy of that substance at that state.
For any substance
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