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24. Given the electrochemical reaction shown, what is the standard free energy change AG° if E° = +1.61 V? Mg / Mg 2*(ag) // Zn"(ag) / Zn b. +311 kJ/mol E° = +1.61 V c. -155 kl/mol d. +155 kJ/mol e. none of the above a. -311 kJ/mol

24. Given the electrochemical reaction shown, what is the standard free energy change AG° if E° = +1.61 V? Mg / Mg 2*(ag) // Zn"(ag) / Zn b. +311 kJ/mol E° = +1.61 V c. -155 kl/mol d. +155 kJ/mol e. none of the above a. -311 kJ/mol

Chemistry
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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24. Given the electrochemical reaction shown, what is the standard free energy change AG° if E° = +1.61 V? Mg / Mg 2*(ag) // Zn"(ag) / Zn b. +311 kJ/mol E° = +1.61 V c. -155 kl/mol d. +155 kJ/mol e. none of the above a. -311 kJ/mol
Transcribed Image Text:24. Given the electrochemical reaction shown, what is the standard free energy change AG° if E° = +1.61 V? Mg / Mg 2*(ag) // Zn"(ag) / Zn b. +311 kJ/mol E° = +1.61 V c. -155 kl/mol d. +155 kJ/mol e. none of the above a. -311 kJ/mol
25. The oxidation of hydrogen by oxygen is one of the most-used reactions in fuel-cell technology. The overall reaction, which is given below, has a AG° value of –474 kJ/mol. What is the standard cell potential for this fuel cell? 2H2(g) + O2(g) → 2H2O(I) AG° =-474 kJ/mol ww. a. 2.46 V b. 4.91 V c. 1.23 V d. 1.50 V
Transcribed Image Text:25. The oxidation of hydrogen by oxygen is one of the most-used reactions in fuel-cell technology. The overall reaction, which is given below, has a AG° value of –474 kJ/mol. What is the standard cell potential for this fuel cell? 2H2(g) + O2(g) → 2H2O(I) AG° =-474 kJ/mol ww. a. 2.46 V b. 4.91 V c. 1.23 V d. 1.50 V
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