Exercises: 1. A Carnot engine generates work from the spontaneous heat transfer from a 400°C heat source to a 25°C heat sink. If 100 J of heat was supplied to this engine, what would be the amount of work that can be extracted from it? 2. A Carnot refrigerator is set to maintain a temperature of 0°C for a system against the surroundings that is at 30°C by actively transferring 100J of heat from the system to the surroundings. What about of work must this refrigerator expend to maintain the temperature difference?

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Exercises:
1. A Carnot engine generates work from the spontaneous heat transfer from a 400°C
heat source to a 25°C heat sink. If 100 J of heat was supplied to this engine, what
would be the amount of work that can be extracted from it?
2. A Carnot refrigerator is set to maintain a temperature of 0°C for a system against
the surroundings that is at 30°C by actively transferring 100J of heat from the
system to the surroundings. What about of work must this refrigerator expend to
maintain the temperature difference?
Transcribed Image Text:Exercises: 1. A Carnot engine generates work from the spontaneous heat transfer from a 400°C heat source to a 25°C heat sink. If 100 J of heat was supplied to this engine, what would be the amount of work that can be extracted from it? 2. A Carnot refrigerator is set to maintain a temperature of 0°C for a system against the surroundings that is at 30°C by actively transferring 100J of heat from the system to the surroundings. What about of work must this refrigerator expend to maintain the temperature difference?
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