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Question

The temperature inside and outside of a refrigerator are 275K and 300K, respectively. Assumng that the refrigerator cycle is ideal reversible, for every joule of work done the heat delivered to the surroundings is nearly.

A
10
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B
11J
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C
14J
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D
12J
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Solution

The correct option is B 11J

B=Q2W

B=1n1
= T2T1T2

= 27327 = 10.1

10.1=Q2W

Q2=10.1

Q1=Q2+W

= 10.1 + 1 = 11.1

Q111J

1216358_1245523_ans_ed531e9f1f724f729588fcb7449480b7.jpeg

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