Choose the one alternative that best completes the statement or answers the question. -A refrigerator has a coefficient of performance equal to 4.2. How much work must be done on the

Choose the one alternative that best completes the statement or answers the question.
-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

Leave a Reply

Your email address will not be published.