Question

The efficiency of a heat engine if the temperature of source ${227}^{0}C$ and that of sink is ${27}^{0}C$ nearly

• A. 0.4
• B. 0.5
• C. 0.6
• D. 0.7

Answer 1

The correct option is C 0.6

The efficiency of heat engine will be$:$

$T_{\sin k}/T_{source}$

$=\left(273+27\right)/\left(273+227\right)$

$=300/500$

$=0.6$

So$,$ efficiency will be $0.6$

Hence,

option $\left(C\right)$ is correct answer.