Thermodynamics: An Engineering Approach 8th Edition

Published by McGraw-Hill Education
ISBN 10: 0-07339-817-9
ISBN 13: 978-0-07339-817-4

Chapter 6 - The Second Law of Thermodynamics - Problems - Page 316: 6-69C

Answer

A) No. b) No.

Work Step by Step

A Carnot cycle is entirely reversible, therefore its efficiency is the maximum achievable efficiency for cycles operating with the same reservoirs, without violating the second law of thermodynamics. In the second case the efficiency would be the same by the second principle of Carnot.
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