Question

what is a heat engine ? obtain general formula for its efficiency.​

Answer 1

Hey mate here is ur ans

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heat engine

heat engine is a device which we use for producing motive powers from heat

formula

The efficiency is defined as  useful work performed / heat absorbed

    = W/Q1

    = (Q1 - Q2)/Q1

    = 1 - Q2/Q1

    = 1 - T2/T1 (this can be proved by using Entropy principles)

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