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Q.

A refrigerator placed in a room at 300K has inside temperature 200K. How many calories of heat shall be delivered to the room for each 2KiloCal of energy consumed by the refrigerator ideally?

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a

4kcal

b

2kcal

c

8kcal

d

6kcal

answer is D.

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Detailed Solution

β=Q2W=T2T1−T2 Q22=200300−200 Q2=4kcal Q1-Q2=W Q1-4=2 Q1=6kcal
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