Question

All of the following are correct statements concerning entropy except one. Find out the wrong statement.

• A. All spontaneous processes tend toward an increase in entropy
• B. The more highly ordered the system, the higher the entropy
• C. The entropy of a pure crystalline solid at $0K$ is $0$
• D. The change in entropy of an equilibrium process is $0$

Answer 1

The correct option is B The more highly ordered the system, the higher the entropy

Wrong statement :
(B) The more highly ordered the system, the higher the entropy.
This is wrong because, more the orderedness lesser the entropy.
Correct statements :
(A) All spontaneous processes tend toward an increase in entropy.
Example: Vapourisation of the water into water vapour increases randomness.
(C) The entropy of pure crystalline solid at $0K$ is $0$. Because the particles are tightly bonded to each other, hence, randomness is zero at $0K$.
(D) The change in entropy of an equilibrium process is $0$, because of the fact that net change in randomness is zero.