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The temperature -entropy diagram of a re...

The temperature -entropy diagram of a reversible engine cycle is given in the figure. Its efficiency is

A

`2/3`

B

`1/3`

C

`1/4`

D

`1/2`

Text Solution

Verified by Experts

The correct Answer is:
B
`eta=(DeltaW)/(Q_(BC))= ("Area of" DeltaABC)/("Area under curve BC")`
`eta=(S_(0)T_(0)//2)/(3s_(0)T_(0)//2)=1/3`
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