Questions
A carnot engine extracts 1200J of energy from a hot reservoir. What is the amount of work done by it? Temperatures of hot and cold reservoirs are 200K and 150K respectively.
detailed solution
Correct option is B
The efficiency of a carnot engine is:1- T2/T1 = 1-150/200 = 1/4.Efficiency is also given by: 1 – Q2/Q1 = 1 – Q2/1200 = 1/4.Q2 = (3/4 )×1200 = 900J.Talk 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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