Calculate the maximum possible efficiency of a heat engine that uses surface lake water at 20.7°C as a source of heat and rejects waste heat to the water 0.100 km below the surface where the temperature is 3.70°C. Numeric Response 0.942

Physics for Scientists and Engineers: Foundations and Connections
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Chapter22: Entropy And The Second Law Of Thermodynamics
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tried 9.4, 9.42, 94, 0.94 they're all wrong idk what to do

Calculate the maximum possible efficiency of a heat engine that uses surface lake water at 20.7°C as a source of heat and rejects
waste heat to the water 0.100 km below the surface where the temperature is 3.70°C.
Numeric Response
0.942
Transcribed Image Text:Calculate the maximum possible efficiency of a heat engine that uses surface lake water at 20.7°C as a source of heat and rejects waste heat to the water 0.100 km below the surface where the temperature is 3.70°C. Numeric Response 0.942
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