Question

Choose the system with zero entropy.

a. 273 K, a colorless diamond
b. Zero K, pure graphite powder
c. Zero K, pure system, a crystal
d. 273 K, homogeneous system, a crystal

Answer 1

The system with zero entropy is Zero K, pure system, a crystal.

Step-by-step explanation:

The system with zero entropy is Zero K, pure system, a crystal. This is because the entropy of a pure, perfect crystalline substance at 0 K is zero, according to the Third Law of Thermodynamics. At absolute zero, the particles in a crystal are in fixed positions and exhibit no motion, resulting in a single microstate and zero entropy.