Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 18 - Think and Solve - Page 351-352: 39

Answer

a. Wally is using the Celsius temperature scale instead of kelvins. His reservoirs are actually at 273 + 300 = 573K, and 273 + 25 = 298 K. b. The maximum/ideal efficiency = $\frac{573 K – 298 K}{573 K} = 0.48 = 48\%$.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After 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.