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Solution: What is the molar entropy of a pure crystal at 0 K?
Problem
What is the molar entropy of a pure crystal at 0 K?
Solution
We are asked to determine the molar entropy of a pure crystalline solid at 0 K.
Recall that the third law of thermodynamics states that the entropy of a pure, perfect crystalline substance at 0 K is zero.
Consider the following:
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