Chapter 14.7, Problem 10PE

(a)

Interpretation Introduction

Interpretation: The changes that occur by the given changes made in the gas-phase equilibrium are to be described.

Concept introduction: The decrease in the concentration of the product or the increase in the concentration of the reaction causes the reaction to proceed in the forward direction to reach the equilibrium.

The increase in the concentration of the product or the decrease in the concentration of the reaction causes the reaction to proceed in the backward direction to reach the equilibrium.

To determine: The changes that occur when the reaction mixture is cooled and water vapour condense.

(b)

Interpretation Introduction

To determine: The changes that occur when ${\text{SO}}_{\text{2}}$ gas dissolves in liquid water as it condenses.

(c)

Interpretation Introduction

To determine: The changes that occur when more ${\text{O}}_{\text{2}}$ gas is added.