Chapter 23, Problem 87A

(a)

Interpretation Introduction

Interpretation: To predict the shift of the equilibrium in the following conditions.

Concept Introduction: The shift of equilibrium with the change in the pressure is given by Le Ch atelier’s principle. According to this principle, if a change is brought into the equilibrium of the system, then the reaction will proceed in such a way that its counterparts the change.

Answer to Problem 87A

The equilibrium will shift towards the left.

Explanation of Solution

When the partial pressure of ${\text{O}}_{\text{2}}$ decrease then the concentration of the ${\text{O}}_{\text{2}}$ will also decrease. This decrease in the concentration will shift the equilibrium towards the right resulting in the formation of ${\text{O}}_{\text{2}}$ .

(b)

Interpretation Introduction

Interpretation: To predict the shift of the equilibrium in the following conditions.

Concept Introduction: The shift of equilibrium with the change in the pressure is given by Le Ch atelier’s principle. According to this principle, if a change is bought in the equilibrium of the system, then the reaction will proceed in such a way that its counterparts the change.

Answer to Problem 87A

The equilibrium will shift towards the left.

Explanation of Solution

if the total pressure is increasing then the equilibrium will shift towards the left that is the equilibrium will shift towards the smaller number of moles. In the equation, the smaller number of moles is towards the reactant side therefore the equilibrium will shift towards the reactant.

(c)

Interpretation Introduction

Interpretation: To predict the shift of the equilibrium in the following conditions.

Concept Introduction: The shift of equilibrium with the change in the pressure is given by Le Ch atelier’s principle. According to this principle, if a change is bought in the equilibrium of the system, then the reaction will proceed in such a way that its counterparts the change.

Answer to Problem 87A

The equilibrium will shift towards the right.

Explanation of Solution

If the partial pressure of oxygen is increasing this depicts that the amount of oxygen is increasing. So, the equilibrium will shift towards the right that is towards the product to consume the excess oxygen present.

(d)

Interpretation Introduction

Interpretation: To predict the shift of the equilibrium in the following conditions.

Concept Introduction: The shift of equilibrium with the change in the pressure is given by Le Ch atelier’s principle. According to this principle, if a change is bought in the equilibrium of the system, then the reaction will proceed in such a way that its counterparts the change.

Answer to Problem 87A

The equilibrium will shift towards the right.

Explanation of Solution

If the partial pressure of NO is increasing this depicts that the amount of NO is increasing. So, the equilibrium will shift towards the right that is towards the product to consume the excess NO present.