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AP EAMCET202317 May 2023Evening ShiftPhysicsThermodynamicsActual

In a Carnot's engine if the temperatures of the source and the sink are decreased by 100 ~K each then the efficiency of the engine

Options

  1. Aincreases
  2. Bdecreases
  3. Cremains constant
  4. Dbecomes one

Correct answer

A. increases

Step-by-step solution

Initial efficiency is given by =1- T₂ T₁ = T₁-T₂ T₁ Decreased by 100 ~K each the efficiency aligned & =1- T₂-100 T₁-100 & = T₁-100-T₂+100 T₁-100 = T₁-T₂ T₁-100 aligned

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