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An Inventor Tries to Sell You His New Heat Engine

Question 96

Essay

An inventor tries to sell you his new heat engine that takes in 40 J of heat at 87°C on each cycle, expels 30 J at 27°C, and does 10 J of work. Would it be wise to invest in this engine? Back up your conclusion with numerical calculations.

Correct Answer:

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Save your money! He has claime...

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