Efficiency of
a Carnot engine is 75%. If the cycle direction is reversed, COP of the reversed
Carnot cycle is
कार्नोट इंजन की दक्षता 75% है। यदि चक्र की दिशा उलट दी जाती है, तो उलटे कार्नोट चक्र का सीओपी होता है
2.33
0.75
0.33
1.75
0.33
Given :
Efficiency of
a Carnot engine 
..Method 1..
If the cycle is reversed the COP of reversed Carnot cycle is,
Hence, the
correct option is (C).
..Method 2..
For refrigerator COP of reversed carnot engine
Hence, the
correct option is (C).
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