NEET Physics Entropy MCQ Question
The entropy change can be calculated by using the expression, ΔS = qrev/T. When water freezes in a glass beaker, choose the correct statement amongst the following:
ΔSsystem decreases but ΔSsurroundings remains the same.
ΔSsystem increases but ΔSsurroundings decreases.
ΔSsystem decreases but ΔSsurroundings increases.
ΔSsystem decreases and ΔSsurroundings also decreases.
Correct Answer
Detailed Explanation
When water freezes, the system loses entropy (ΔSsystem decreases), but the surroundings gain entropy due to the release of heat, leading to an increase in ΔSsurroundings.
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