Questions
A carnot engine having an efficiency of as heat engine, is used as a refrigerator. If the work done on the system is 10 J, the amount of energy absorbed from the reservoir at lower temperature is
detailed solution
Correct option is A
The relation between coefficient of performance and efficiency of carnot engine is given asβ=1-ηη Given η=110,W=10 Jβ=1-110110=910·10=9 Since, β=Q2W, where Q2 is the amount of energy absorb from the reservor∴ Q2=βW=9×10=90 JTalk to our academic expert!
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An ideal Carnot engine whose efficiency is 40% receives heat at 500K if the efficiency is to be 50%, the intake temperature for the same exhaust temperature is.
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