For a gaseous reaction, standard conditions are 298 K and a partial pressure of 1 atm for all species.For the reactionN, (g) + 3 H, (g) = 2 NH,(g)the standard change in Gibbs free energy is AG° = –72.6 kJ/mol. What is AG for this reaction at 298 K when the partialpressures are PN,= 0.500 atm, PH,= 0.500 atm, and PNH, = 0.600 atm?AG =kJ/mol

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AG =

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter16: Thermodynamics: Directionality Of Chemical Reactions

Section: Chapter Questions

Problem 105QRT

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Question

For a gaseous reaction, standard conditions are 298 K and a partial pressure of 1 atm for all species.
For the reaction
N, (g) + 3 H, (g) = 2 NH,(g)
the standard change in Gibbs free energy is AG° = –72.6 kJ/mol. What is AG for this reaction at 298 K when the partial
pressures are PN,
= 0.500 atm, PH,
= 0.500 atm, and PNH, = 0.600 atm?
AG =
kJ/mol

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