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Solved: Consider the reaction Comment on the changes in
Chapter 14, Problem 59P(choose chapter or problem)
Consider the reaction
\(2 \mathrm{SO}_2(g)+\mathrm{O}_2(g) \leftrightharpoons 2 \mathrm{SO}_3(g)\)
\(\Delta H^{\circ}=-198.2 \mathrm{~kJ} / \mathrm{mol}\)
Comment on the changes in the concentrations of \(\mathrm{SO}_2, \mathrm{O}_2\), and \(\mathrm{SO}_3\) at equilibrium if we were to
(a) increase the temperature;
(b) increase the pressure;
(c) increase \(\mathrm{SO}_2 ;\)
(d) add a catalyst;
(e) add helium at constant volume.
Questions & Answers
QUESTION:
Consider the reaction
\(2 \mathrm{SO}_2(g)+\mathrm{O}_2(g) \leftrightharpoons 2 \mathrm{SO}_3(g)\)
\(\Delta H^{\circ}=-198.2 \mathrm{~kJ} / \mathrm{mol}\)
Comment on the changes in the concentrations of \(\mathrm{SO}_2, \mathrm{O}_2\), and \(\mathrm{SO}_3\) at equilibrium if we were to
(a) increase the temperature;
(b) increase the pressure;
(c) increase \(\mathrm{SO}_2 ;\)
(d) add a catalyst;
(e) add helium at constant volume.
ANSWER:Step 1 of 6
Lechalier’s principle: If equilibrium is distributed by changing conditions, the system will move the equilibrium to reverse the change.