JEE Physics · Medium

Kinetic Theory and Thermodynamics: Entropy MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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EntropyMediumQuestion 31028

Question

Entropy of an isolated system in a spontaneous process:
  1. A
    Decreases
  2. B
    Stays same
  3. C
    Increases
    Correct
  4. D
    Oscillates

Correct answer

Increases

Explanation

Second law: total entropy of isolated system always increases (or stays same in reversible process). ΔS ≥ 0.