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AP EAMCET202124 Aug 2021Morning ShiftPhysicsThermodynamicsActual

The efficiency of Carnot heat engine

Options

  1. Ais independent of the temperature of the source and the sink
  2. Bis independent of the working substance
  3. Ccan be 100 %
  4. Dis not affected by the thermal capacity of the source or the sink

Correct answer

B. is independent of the working substance

Step-by-step solution

We know that, the efficiency of Carnot heat engine is =1- T₂ T₁ where, T₁= temperature of source (hot reservoir) T₂= temperature of sink (cold reservoir) Hence, efficiency depends only on the temperature of hot and cold reservoir but independent of the working substance.

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