Essential University Physics: Volume 1 (3rd Edition)

Published by Pearson
ISBN 10: 0321993721
ISBN 13: 978-0-32199-372-4

Chapter 19 - Section 19.2 - The Second Law of Thermodynamics - Got It?: 19.2

Answer

c)

Work Step by Step

In order to determine how much the efficiency will change, you need to know the original value of $T_h$. After all, efficiency depends on how much the value of $T_h$ is above the value of $T_c$.
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