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JEE Main 2022 (26 Jun, Shift 1) · Heat Engines, Refrigerators & Second Law

Heat Engines, Refrigerators & Second Law question from JEE Main 2022 (26 Jun, Shift 1)

Q31JEE Main 2022 · 26 JUN · SHIFT 1Easy

Heat Engines, Refrigerators & Second Law

The efficiency of a Carnot's engine, working between steam point and ice point, will be:

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Answer: (a)

  1. Steam point T1=373.15T_1 = 373.15 K, ice point T2=273.15T_2 = 273.15 K
  2. η=100373.15=0.2681\eta = \frac{100}{373.15} = 0.2681
  3. So the answer is (a) 26.81%.
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