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Question: a heat engine takes 27 104 j of heat...

Question details

A heat engine takes 2.7 * 10^4 J of heat per cycle from a 320 degree C reservoir and exhausts some of it to a 120 degree C reservoir. How much work is done by the engine?

A) 2.8 * 10^4 J

B) 5.3 * 10^4 J

C) 7.4 * 10^4 J

D) 9.1 * 10^4 J

I had got 0.91 * 10^4 as the total work.

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