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AP EAMCET202420 May 2024Evening ShiftPhysicsThermodynamicsActual

The efficiency of a Carnot's engine is 25 % , when the temperature of sink is 300 K . The increase in the temperature of source required for the efficiency to become 50 % is

Options

  1. A225 K
  2. B400 K
  3. C200 K
  4. D100 K

Correct answer

C. 200 K

Step-by-step solution

for carnot engine, aligned & ₁=1- T₂ T₁ 1 4 =1- 300 T₁ T₁=400 ~K & Again, ₂=1- T₂ T₁+x 1 2 =1- 300 400+x & x=200 k aligned

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