A Carnot engine absorbs 1000 J of heat energy from a reservoir at 127 ° C and rejects 600 J of heat energy during each cycle. The efficiency of the engine and temperature of the sink will be

Question

A Carnot engine absorbs 1000 J of heat energy from a reservoir at 127 ° C and rejects 600 J of heat energy during each cycle. The efficiency of the engine and temperature of the sink will be, 70 % and - 10 ° C, 50 % and - 20 ° C, 40 % and - 33 ° C, 20 % and - 43 ° C

MARKS App · Accepted Answer

Q 1 = 1000 J Q 2 = 600 η = 1 - Q 2 Q 1 = 40 % T 1 T 2 = Q 1 Q 2 400 T 2 = 1000 600 T 2 = 240 K - 273 = - 33 ° C

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