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The efficiency of a Carnot engine which ...

The efficiency of a Carnot engine which operates between the two temperatures `T_1=500K` and `T_2=300K` is

A

0.25

B

0.4

C

0.5

D

0.75

Text Solution

Verified by Experts

The correct Answer is:
B
The efficiency of a Carnot engine is
`eta=1-(T_(2))/(T_(1))`
Here , `T_(1)500K,T_(2)=300K`
`thereforeeta=1-(300K)/(500K)=(500K-300K)/(500K)`
`=(200K)/(500K)=(2)/(5)=(2)/(5)xx10%=40%`
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