Question

When ice melts into water, entropy:

• A. Becomes zero
• B. Irreversible
• C. Increases
• D. Remains the same

Answer 1

The correct option is C

Increases

We know the definition of spontaneous process.
and, According to second law of Thermodynamics, For a spontaneous process, the total entropy change for a system and its surroundings increases.
$\Rightarrow$ Melting of ice into water is a spontaneous process.
Therefore, according to second law its entropy will increase.