A reversible engine working between two reservoirs at
Chapter , Problem 44(choose chapter or problem)
A reversible engine working between two reservoirs at temperatures and has an efficiency of 20 percent. Working as a heat engine, it does 100 J of work per cycle. A second engine working between the same two reservoirs also does 100 J of work per cycle. Show that if the efficiency of the second engine is greater than 20 percent, the two engines working together would violate the refrigerator statement of the second law.
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