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Question 23066
NEET Chemistry · Medium

Thermodynamics: Heat engine logic MCQ

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Heat engine logicMediumQuestion 23066

Question

No heat engine can be 100% efficient because:

  1. A
    Some energy must be rejected as heat
    Correct
  2. B
    First law fails
  3. C
    Entropy decreases to zero
  4. D
    Work becomes a state function

Correct answer

Some energy must be rejected as heat

Explanation

Second-law restrictions limit conversion of heat into work.

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