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In a heat engine, the temperature of the...

In a heat engine, the temperature of the source and sink are 500 K and 375 K. If the engine consumes `25xx10^5J` per cycle, find(a) the efficiency of the engine, (b) work done per cycle, and (c) heat rejected to the sink per cycle.

A

`6.25xx10^(5) J`

B

`3xx10^(5) J`

C

`2.19xx10^(5) J`

D

`4xx10^(4) J`

Text Solution

Verified by Experts

The correct Answer is:
A
Here `T_(1)=500 K, T_(2)=375 K,Q_(1)=25xx106(5) J`
`therefore eta =1-(T_(2))/(T_(1))=1-(375)/(500)=0.25 = 25%`
`W=etaQ_(1)=0.25xx25xx2510^(5)=6.25xx10^(5)J`
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