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Question 31069
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Kinetic Theory and Thermodynamics: Second Law MCQ

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Second LawHardQuestion 31069

Question

Which statement is true about entropy?
  1. A
    Entropy of universe can decrease in irreversible processes
  2. B
    Entropy is conserved in all processes
  3. C
    Entropy of universe never decreases
    Correct
  4. D
    Entropy can be negative

Correct answer

Entropy of universe never decreases

Explanation

ΔS_universe ≥ 0 always. Equal in reversible processes, positive in irreversible. Never negative.

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