Work done by a Carnot engine operating between temperatures 127 ° C and 27 ° C is 2 kJ . The amount of heat transferred to the engine by the reservoir is:

Question

Work done by a Carnot engine operating between temperatures 127 ° C and 27 ° C is 2 kJ . The amount of heat transferred to the engine by the reservoir is:, 8 kJ, 2 . 67 kJ, 2 kJ, 4 kJ

MARKS App · Accepted Answer

The temperatures in Kelvin scales are T 2 = 27 ° C + 273 = 300 K T 1 = 127 ° C + 273 = 400 K The efficiency of the Carnot engine is η = 1 - T 2 T 1 = 1 - 300 400 = 1 4 Using the relation, η = W Q ⇒ 2 kJ Q = 1 4 ⇒ Q = 8 kJ

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