Question

The entropy change $(\Delta S)$ in a system increase as:

• A. solid < liquid < gas
• B. liquid < gas < solid
• C. solid < gas < liquid
• D. gas < solid < liquid

Answer 1

Answer: (A)

Entropy is the measurement of randomness. More the randomness, more will be entropy.
$\because$ Gases have maximum randomness.
$\therefore$ Gases have highest entropy.
$\therefore$ Correct order of entropy is solid < liquid < gas.