A Carnot engine absorbs Q1 amount of heat from a reservoir at an absolute temperature T and rejects heat to a sink at a temperature of T/3. The amount of heat rejected is
A
Q1/4
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B
Q1/3
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C
Q1/2
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D
2Q1/3
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Solution
The correct option is BQ1/3 Q1=W+Q2 η=WQ1 η=1−Q2Q1
For reversible engine Q depends only on temperature.
So, η=1−T2T1