Chemistry and Chemical Reactivity (9th Edition)

by Kotz, John C.; Treichel, Paul M.; Townsend, John R.; Treichel, David A.

Published by Cengage Learning

ISBN 10: 1133949649

ISBN 13: 978-1-13394-964-0

Chapter 18 Principles of Chemical Reactivity: Entropy and Free Energy - Study Questions - Page 711f: 71

Answer

See below

Work Step by Step

Dissolving a solid such as NaCl in water is a product favored process. Thus, ΔG° < 0. If ΔH° = 0, then the only way the free energy change can be negative is if ΔS° is positive. Generally the entropy change is the important factor in forming a solution.

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