A reversible engine working between temperatures limits 600 degree kelvin and 1200 degree kelvin receives 50 kj of heat work done by engine is
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Given
Temperature of source T₁ = 1200 K
Temperature of sink T₂ = 600 K
Heat supplied Q₁ = 50 J
To determine work done = Heat supplied (Q₁) - Heat Rejected (Q₂) ------(A)
Now as mentioned in the question the engine is reversible, thus
Efficiency η = (Output/ Input )= (T₁ - T₂)/(T₁) = (Q₁ - Q₂)/(Q₁)
1 - (600/1200) = 1 - (Q₂/50)
Q₂ = (600 × 50)/1200 = 25 J
Reducing the above found value in A we get,
Work done = 50 -25 = 25 J
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