The decomposition of crystalline N3O5 N2O5 (s) → 2NO2(g) + 02(9) 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? (c) Calculate AU° for this reaction at 25 °C. (d) Why is AH° greater than AU?

The decomposition of crystalline N3O5 N2O5 (s) → 2NO2(g) + 02(9) 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? (c) Calculate AU° for this reaction at 25 °C. (d) Why is AH° greater than AU?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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