Questions
A Carnot engine works first between 200° C and 0° C and then between 0° C and – 200° C. The ratio of its efficiency in these two cases is
a
1.0
b
0.721
c
0.577
d
0.34
detailed solution
Correct option is C
η1η2=1−T2T11−T21T11=1−2734731−73273=0.577Talk to our academic expert!
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For which combination of working temperatures of source and sink, the efficiency of Carnot's heat engine is maximum?
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