Chapter 5, Problem 5J.9E

(a)

Interpretation Introduction

Interpretation:

The effect of partial pressure of ${\text{NH}}_{\text{3}}$ when $\text{NO}$ partial pressure is increased has to be identified.

Concept Introduction:

Le Chatelier's principle:

When a change is applied to a system at equilibrium, the equilibrium will shift against the change. The equilibrium of a system will be affected by the change in temperature, pressure, and concentration.

(b)

Interpretation Introduction

Interpretation:

The effect of partial pressure of ${\text{O}}_{\text{2}}$ when ${\text{NH}}_{\text{3}}$ partial pressure is decreased has to be identified.

Concept Introduction:

Refer part (a).