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NEET2018PhysicsThermodynamicsActual

The efficiency of an ideal heat engine working between the freezing point and boiling point of water, is

Options

  1. A6.25 %
  2. B20 %
  3. C26.8 %
  4. D12.5 %

Correct answer

C. 26.8 %

Step-by-step solution

efficiency of ideal heat engine, η = 1 − T 2 T 1 T 2 : temperature of sink T 1 : temperature of source Efficiency in Percentage, η = T 1 - T 2 T 1 × 100 T 1 = 373 , T 2 = 273 η = 100 373 × 100 = 26.8 %

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