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Question 31078
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Kinetic Theory and Thermodynamics: Entropy MCQ

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EntropyHardQuestion 31078

Question

When 1 kg water at 100°C converts to steam at 100°C (L = 2.26×10⁶ J/kg), entropy change is:
  1. A
    6045 J/K
    Correct
  2. B
    2260 J/K
  3. C
    12090 J/K
  4. D
    226 J/K

Correct answer

6045 J/K

Explanation

ΔS = Q/T = mL/T = 1×2.26×10⁶/373 ≈ 6057 J/K ≈ 6045 J/K.

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