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AP EAMCET20228 Jul 2022Morning ShiftPhysicsThermodynamicsActual

Temperature of a cold reservoir of a Carnot engine is 127^ C . If the efficiency of the Carnot engine is 20 % , then the temperature of the hot reservoir is

Options

  1. A500^ C
  2. B227^ C
  3. C273^ C
  4. D400^ C

Correct answer

B. 227^ C

Step-by-step solution

As =1- T _ C T _ H 0.2=1- 400 ~T _ H aligned & 400 ~T _ H =0.8 & T _ H =500 ~K =227^ C aligned

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