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The decomposition of crystalline N,O, N,0,(s) → 2NO,(g) + 0,(g) is an example of a reaction that is thermodynamically favored, even though it absorbs heat. At 25 °C we have the following values for the standard state enthalpy and free energy changes of the reaction: AH° = +109.6 kJ/mol AG° = -30.5 kJ/mol (a) Calculate AS° at 25 °C. (b) Why is the entropy change so favorable for this reaction?

The decomposition of crystalline N,O, N,0,(s) → 2NO,(g) + 0,(g) is an example of a reaction that is thermodynamically favored, even though it absorbs heat. At 25 °C we have the following values for the standard state enthalpy and free energy changes of the reaction: AH° = +109.6 kJ/mol AG° = -30.5 kJ/mol (a) Calculate AS° at 25 °C. (b) Why is the entropy change so favorable for this reaction?

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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The decomposition of crystalline N,O, N,0,(s) → 2NO,(g) + 0,(g) is an example of a reaction that is thermodynamically favored, even though it absorbs heat. At 25 °C we have the following values for the standard state enthalpy and free energy changes of the reaction: AH° = +109.6 kJ/mol AG° = -30.5 kJ/mol (a) Calculate AS° at 25 °C. (b) Why is the entropy change so favorable for this reaction?
Transcribed Image Text:The decomposition of crystalline N,O, N,0,(s) → 2NO,(g) + 0,(g) is an example of a reaction that is thermodynamically favored, even though it absorbs heat. At 25 °C we have the following values for the standard state enthalpy and free energy changes of the reaction: AH° = +109.6 kJ/mol AG° = -30.5 kJ/mol (a) Calculate AS° at 25 °C. (b) Why is the entropy change so favorable for this reaction?
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