Questions
A refrigerator absorbs 2000 cals of heat from ice trays. If the coefficient of performance is 4, then work done by the motor is
detailed solution
Correct option is B
coefficient of performance is β= Q2Q1-Q2 =Q2Where Q2 is 2000 cal and β=4 so W= 500 cal = 2100 JTalk to our academic expert!
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