Answer
See explanation below.
Work Step by Step
Cascade refrigeration systems have higher COPs than a simple vapor-compression cycle operating between the same pressure limits.
Thermodynamics: An Engineering Approach 8th Edition
by Cengel, Yunus; Boles, Michael
Published by
McGraw-Hill Education
ISBN 10:
0-07339-817-9
ISBN 13:
978-0-07339-817-4
Chapter 11 - Refrigeration Cycles - Problems - Page 643: 11-48C
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