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A key step in the production of sulfuric acid is the oxidation of SO2(g) to SO3(g): 2SO2(g) + O2(g) → 2SO3(g) At 298 K, ΔG = -141.6 kJ/mol; ΔH = -198.4 kJ/mol; and ΔS = -187.9 J/K•mol   (a) Use the data to decide if this reaction is spontaneous at 25°C, and predict how ΔG will change with increasing T. (with solutions)     (b) Assuming ΔH and ΔS are constant with increasing T, is the reaction spontaneous at 900° C? (with solutions)

A key step in the production of sulfuric acid is the oxidation of SO2(g) to SO3(g): 2SO2(g) + O2(g) → 2SO3(g) At 298 K, ΔG = -141.6 kJ/mol; ΔH = -198.4 kJ/mol; and ΔS = -187.9 J/K•mol   (a) Use the data to decide if this reaction is spontaneous at 25°C, and predict how ΔG will change with increasing T. (with solutions)     (b) Assuming ΔH and ΔS are constant with increasing T, is the reaction spontaneous at 900° C? (with solutions)

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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  1. A key step in the production of sulfuric acid is the oxidation of SO2(g) to SO3(g):

2SO2(g) + O2(g) → 2SO3(g)

At 298 K, ΔG = -141.6 kJ/mol; ΔH = -198.4 kJ/mol; and ΔS = -187.9 J/K•mol

 

(a) Use the data to decide if this reaction is spontaneous at 25°C, and predict how ΔG will change with increasing T. (with solutions)

 

 

(b) Assuming ΔH and ΔS are constant with increasing T, is the reaction spontaneous at 900° C? (with solutions)

 

 

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