Q.
The efficiency of a Carnot’s engine working between 400K and 800 K is
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a
0.5
b
0.4
c
0.33
d
0.6
answer is A.
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Detailed Solution
efficiency of heat engine=η=1−T2T1given T1=800K;T2=400Kη=1−400800=1−12=0.5
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