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Q.

A Camot engine having an efficiency of 110 as heat engine, is used as a refrigerator. If the work done on the system is l0 J, the amount of energy absorbed from the reservoir at lower temperature is:

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a

90 J

b

99 J

c

100 J

d

1 J

answer is A.

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Detailed Solution

Efficiency = Wq1 = 10q1 = 110 ⇒ q1 = 100 J⇒q2 = q1-W = 100-10 = 90 J

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A Camot engine having an efficiency of 110 as heat engine, is used as a refrigerator. If the work done on the system is l0 J, the amount of energy absorbed from the reservoir at lower temperature is: