Chapter 6, Problem 65E

a)

Interpretation Introduction

Interpretation:Effect onnumber of moles of ${\text{SO}}_3$ as oxygen is added in below reaction is to be determined.

  $2{\text{SO}}_3\left(g\right)\rightleftharpoons 2{\text{SO}}_2\left(g\right)+{\text{O}}_{\text{2}}\left(g\right)$

Concept introduction: In accordance to Le Chatelier’s principle, change in reaction condition brings changes in position of equilibrium and shifts equilibrium in that direction that tends to decrease the change. It states that on addition of reactant or product in a reaction, shifts the equilibrium in the direction of decreasing the added amount. Whereas on removal of reactant or product in reaction, shifts the equilibrium in the direction of increasing the amount removed.

b)

Interpretation Introduction

Interpretation:Effect onnumber of moles of ${\text{SO}}_3$ as pressure is increased with decrease in volume in below reaction is to be determined.

  $2{\text{SO}}_3\left(g\right)\rightleftharpoons 2{\text{SO}}_2\left(g\right)+{\text{O}}_{\text{2}}\left(g\right)$

Concept introduction: In accordance to Le Chatelier’s principle, change in reaction condition brings changes in position of equilibrium and shifts equilibrium in that direction that tends to decrease the change. It states that on addition of reactant or product in a reaction, shifts the equilibrium in the direction of decreasing the added amount. Whereas on removal of reactant or product in reaction, shifts the equilibrium in the direction of increasing the amount removed.

c)

Interpretation Introduction

Interpretation: Effect on number of moles of ${\text{SO}}_3$ as pressure is increased on addition of argon gas in below reaction is to be determined.

  $2{\text{SO}}_3\left(g\right)\rightleftharpoons 2{\text{SO}}_2\left(g\right)+{\text{O}}_{\text{2}}\left(g\right)$

Concept introduction: In accordance to Le Chatelier’s principle change in reaction condition brings changes in position of equilibrium and shifts equilibrium in that direction that tends to decrease the change.

d)

Interpretation Introduction

Interpretation: Effect onnumber of moles of ${\text{SO}}_3$ as temperature of endothermic reaction is decreased in below reaction is to be determined.

  $2{\text{SO}}_3\left(g\right)\rightleftharpoons 2{\text{SO}}_2\left(g\right)+{\text{O}}_{\text{2}}\left(g\right)$

Concept introduction: In accordance to Le Chatelier’s principle change in reaction condition brings changes in position of equilibrium and shifts equilibrium in that direction that tends to decrease the change. It states that for an endothermic reaction increase in temperature tends to shift equilibrium in forward direction and for exothermic reaction it shifts in backward direction.

e)

Interpretation Introduction

Interpretation:Effect onnumber of moles of ${\text{SO}}_3$ as sulfur dioxide is removed from below reaction is to be determined.

  $2{\text{SO}}_3\left(g\right)\rightleftharpoons 2{\text{SO}}_2\left(g\right)+{\text{O}}_{\text{2}}\left(g\right)$

Concept introduction: In accordance to Le Chatelier’s principle, change in reaction condition brings changes in position of equilibrium and shifts equilibrium in that direction that tends to decrease the change. It states that on addition of reactant or product in a reaction, shifts the equilibrium in the direction of decreasing the added amount. Whereas on removal of reactant or product in reaction, shifts the equilibrium in the direction of increasing the amount removed.