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The temperature-entropy diagram of a reversible engine cycle is given in the figure. Its efficiency is

Options

  1. A1 / 2
  2. B1 / 4
  3. C1 / 3
  4. D2 / 3

Correct answer

C. 1 / 3

Step-by-step solution

= W Q _ BC = S ₀ ~T ₀ 2 3 ~S ₀ ~T ₀ 2 =1 / 3

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