A Refrigerator Has a Coefficient of Performance Equal to 4

question 246

Multiple Choice

A refrigerator has a coefficient of performance equal to 4.2. How much work must be done on the operating gas in the refrigerator in order to remove 250 J of heat from the interior compartment?

• A) 1050 J
• B) 480 J
• C) 250 J
• D) 120 J
• E) 60 J

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