Question

According to the third law of thermodynamics
which one of the following quantities for a
perfectly crystalline solid is zero at absolute
zero?
(a) Free energy (b) Entropy
(c) Enthalpy (d) Internal energy

Answer 1

Answer:

(b) Entropy

Explanation:

The Third Law states, “The entropy of a perfect crystal is zero when the temperature of the crystal is equal to absolute zero (0 K).” According to Purdue University, “The crystal must be perfect, or else there will be some inherent disorder.

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Answer 2

According to the third law of thermodynamics

which one of the following quantities for a

perfectly crystalline solid is zero at absolute

zero is entropy

so option B