Chemistry (4th Edition)

Published by McGraw-Hill Publishing Company
ISBN 10: 0078021529
ISBN 13: 978-0-07802-152-7

Chapter 18 - Section 18.5 - Predicting Spontaneity - Checkpoint - Page 856: 18.5.4

Answer

(b) $196\,J/K\cdot mol$

Work Step by Step

We find: $\Delta S_{sub}=\frac{\Delta H_{sub}}{T_{transition}}=\frac{62.4\,kJ/mol}{(45+273.15)\,K}=\frac{62.4\times1000\,J/mol}{318.15\,K}$ $=196\,J/K\cdot mol$
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