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The temperature of source and sink of a ...

The temperature of source and sink of a Carnot engine are 400 K and 300 K respectively. Its efficiency is

A

`100%`

B

`75%`

C

`33.3%`

D

`25%`

Text Solution

Verified by Experts

The correct Answer is:
D
`eta = 1 - (T_(2))/(T_(1))`
`eta = 1 - (300)/(400) = 1 - (3)/(4) = (1)/(4)`
`eta = (1)/(4) xx 100 = 25%`
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