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NEETPhysics-Thermodynamics

NEET Physics Entropy MCQ Question

Type: MCQ-conceptual-Medium-Class 11

The entropy change can be calculated by using the expression ΔS = qₑₓₜ/T. When water freezes in a glass beaker, choose the correct statement amongst the following.

A

ΔS (system) decreases but ΔS (surroundings) remains the same

B

ΔS (system) increases but ΔS (surroundings) decreases

C

ΔS (system) decreases but ΔS (surroundings) increases

D

ΔS (system) decreases but ΔS (surroundings) also decreases

Correct Answer

Option C

Detailed Explanation

When water freezes, the system becomes more ordered, decreasing its entropy, but the surroundings gain heat, increasing their entropy.

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