Chapter 12, Problem 59QRT

(a)

Interpretation Introduction

Interpretation:

Whether the given reaction ${\text{2SO}}_{\text{3(g)}}\stackrel{}{\rightleftharpoons }{\text{ 2SO}}_{\text{2(g)}}{\text{ + O}}_{\text{2(g)}}$ is at equilibrium or not has to be given.

Concept Introduction:

Comparison of ${\text{Q}}_{\text{c}}{\text{ and K}}_{\text{c}}$ :

When ${\text{Q}}_{\text{c}}{\text{ < K}}_{\text{c}}$, the reaction will proceed in right direction, $\text{reactants}\stackrel{}{\to }\text{products}$

When ${\text{Q}}_{\text{c}}{\text{ > K}}_{\text{c}}$, the reaction will proceed in left direction, $\text{reactants}\stackrel{}{\leftarrow }\text{products}$

When ${\text{Q}}_{\text{c}}{\text{ = K}}_{\text{c}}$, the reaction will remain unchanged, $\text{reactants}\stackrel{}{\rightleftharpoons }\text{products}$

(b)

Interpretation Introduction

Interpretation:

The direction to which the given reaction proceed to reach equilibrium has to be given with explanation.

Concept Introduction:

Refer part (a)