Answer
The Correct Option is b
Work Step by Step
$n=1-\frac{T_c}{T_h}$
$T_c=30^{\circ}C=303K$
$T_h=300^{\circ}C=573K$
$n=1-\frac{303}{573}=0.47$ or $47\text%$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.