Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter16: Spontaneity Of Reaction
Section: Chapter Questions
Problem 62QAP: Consider the reaction NH4+(aq) H+(aq)+NH3(aq) Use G f for NH3(aq) at 25C=26.7 kJ/mol and the...
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Gibbs free energy is related to enthalpy change and change in entropy at constant temperature as,
ΔG° = ΔH° – TΔS°
Where, ΔG° is the Gibbs free energy of the reaction.
ΔH° is the enthalpy change of the reaction= -158.0 kJmol-1 = -158.0 x 1000 Jmol-1 = -158000 Jmol-1
ΔS° is the entropy change of the reaction = -219.9 JK-1 mol-1
T is the temperature = 387 K
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