Author Question: A steam engine is operating at its theoretical maximum efficiency of 60%. If the waste heat has a ... (Read 238 times)

jake · **on:** Aug 6, 2020

Question 1

A refrigerator has a coefficient of performance of 4. If the refrigerator absorbs 30 cal of heat from the cold reservoir in each cycle, the heat expelled (in cal) into the heat reservoir is

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40.5

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37.5

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36.5

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34.5

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22.5

Question 2

A steam engine is operating at its theoretical maximum efficiency of 60%. If the waste heat has a temperature of 100°F (38°C), what is the temperature of the boiler?

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350°C

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94°C

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225°C

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504°C

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775°C

tandmlomax84 · **Reply #1 on:** Aug 6, 2020

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