Suppose a heat engine is connected to two energy
Chapter 12, Problem 12.57(choose chapter or problem)
Suppose a heat engine is connected to two energy reservoirs, one a pool of molten aluminum at 660C and the other a block of solid mercury at 38.9C. The engine runs by freezing 1.00 g of aluminum and melting 15.0 g of mercury during each cycle. The latent heat of fusion of aluminum is 3.97 105 J/kg, and that of mercury is 1.18 104 J/kg. (a) What is the efciency of this engine? (b) How does the efciency compare with that of a Carnot engine?
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