Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 19 - Chemical Thermodynamics - Exercises - Page 846: 19.7b

Answer

The reaction is spontaneous above 300K.

Work Step by Step

Above 300K, $\Delta$G is negative. $\Delta$G is negative when T$\Delta$S is greater than $\Delta$H, which occurs above 300K as indicated by the graph. When Gibbs Free Energy ($\Delta$G) is negative, a reaction is spontaneous.
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