PhysicsThe efficiency of a heat engine if the temperature of the source is 100°C and sink is 27°C is nearly

The efficiency of a heat engine if the temperature of the source is 100°C and sink is 27°C is nearly

  1. A

    0.1

  2. B

    0.2

  3. C

    0.3

  4. D

    0.4

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    Solution:

    T1=373k,T2=300kη=T1T2T1=373300373=73373η=0.1975η0.2

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