Question

When a solid melts reversibly

• A. H decreases
• B. G increases
• C. E decreases
• D. S increases

Hint:

When a solid melts, the disorder of the system increases, which results in a positive entropy change.

Answer 1

The Correct Option is D

Step 1: Entropy change during melting.
When a solid melts, there is an increase in disorder or entropy. Hence, the entropy (S) increases.

Step 2: Conclusion.
Thus, the correct answer is option (D).

Final Answer: \[ \boxed{\text{(D) S increases}} \]