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JEE Main202116 Mar 2021Evening ShiftPhysicsThermodynamicsActual

For an ideal heat engine, the temperature of the source is 127 ° C . In order to have 60 % efficiency the temperature of the sink should be __________ C ∘ . (Round off to the nearest integer)

Correct answer

0

Step-by-step solution

n = 0 . 60 = 1 - T L T H T L T H = 0 . 4 ⇒ T L = 0 . 4 × 400 = 160   K = - 113 ° C

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