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12 May, 13:35

an engine has been design to work between source and the sink at temperature 177 degree Celsius and 27 degree Celsius respectively. if the energy input is 3600 joule. what is the work done by the engine

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  1. 12 May, 14:49
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    Given data

    Source temperature (T₁) = 177°C = 177+273 = 450 K

    Sink temperature (T₂) = 27°C = 27+273 = 300 K

    Energy input (Q₁) = 3600 J,

    Work done = ?

    We know that, efficiency (η) = Net work done : Heat supplied

    η = W : Q₁

    W = η * Q₁

    First determine the efficiency (η) = ?

    Also, we know that (η) = (T₁ - T₂) : (T₁)

    = 33.3% = 0.333

    Now, Work done is W = η * Q₁

    = 0.33 * 3600

    W = 1188 J

    Work done by the engine is 1188 J
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