Carnot Devices: a Carnot Refrigerator Has a Coefficient of Performance

question 15

Multiple Choice

Carnot devices: A Carnot refrigerator has a coefficient of performance of 2.5. The refrigerator consumes 50 W of power. How much heat is removed from the interior of the refrigerator in 1 hour?

• A) 7.5 kJ
• B) 450 kJ
• C) 180 kJ
• D) 720 kJ
• E) 72 kJ

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