Question

Note that all substances, other than perfect crystalline substances at 0 K, have:

a) Zero entropy.
b) Maximum entropy.
c) Positive entropy.
d) Negative entropy.

Answer 1

The entropy of a substance is determined by its degree of randomness or disorder. According to the Third Law of Thermodynamics, perfect crystalline substances at 0 K have zero entropy, while substances at any temperature above 0 K have positive entropy.

Step-by-step explanation:

The entropy of a substance refers to the degree of randomness or disorder in its particles. According to the Third Law of Thermodynamics, the entropy of a pure, perfect crystalline substance at 0 K is zero. This means that substances at any temperature above 0 K will have positive entropy, as there is an increase in molecular motion and disorder.