A refrigerator with a coefficient of performance of 4 transfers heat from a cold region at -20°C

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A refrigerator with a coefficient of performance of 4 transfers heat from a cold region at -20°C to a hot region at 30°C. Calculate the total entropy change of the regions when 1 kJ of heat is transferred from the cold region. Is the second law satisfied? Will this refrigerator still satisfy the second law if its coefficient of performance is 6?
A refrigerator with a coefficient of performance of 4 transfers
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Thermodynamics An Engineering Approach

ISBN: 978-0073398174

8th edition

Authors: Yunus A. Cengel, Michael A. Boles

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