Answer
Diamond
Work Step by Step
Diamond's thermal conductivity is $(2000-2500)\frac{W}{mK}$
Silver's thermal conductivity is $(406.1-418.7)\frac{W}{mK}$
As diamond has greater thermal conductivity than silver is better heat conductor.
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 2 - Energy, Energy Transfer, and General Energy Analysis - Problems - Page 103: 2-86C
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