Chapter 7, Problem 67P

(a)

Interpretation Introduction

Interpretation: For the given reaction, change in equilibrium needs to be explained, if pressure is doubled.

Concept Introduction: The given equilibrium reaction is as follows:

${\text{CS}}_{\text{2}}\left(g\right)+3{\mathrm{Cl}}_2\left(g\right)\rightleftharpoons {\text{CCl}}_{\text{4}}\left(g\right)+{\text{S}}_{\text{2}}{\text{Cl}}_{\text{2}}\left(g\right)+238\text{kJ}$

According to Le Chatelier's principle, if any change in the equilibrium reaction takes place, the equilibrium gets reestablished by shifting in the reaction to oppose that change.

For example, if number of moles increases, the equilibrium shifts in the reaction to decrease the number of moles.

(b)

Interpretation Introduction

Interpretation: For the given reaction, change in equilibrium needs to be explained, if ${\text{CCl}}_{\text{4}}$ is removed.

Concept Introduction: The given equilibrium reaction is as follows:

${\text{CS}}_{\text{2}}\left(g\right)+3{\mathrm{Cl}}_2\left(g\right)\rightleftharpoons {\text{CCl}}_{\text{4}}\left(g\right)+{\text{S}}_{\text{2}}{\text{Cl}}_{\text{2}}\left(g\right)+238\text{kJ}$

According to Le Chatelier's principle, if any change in the equilibrium reaction takes place, the equilibrium gets reestablished by shifting in the reaction to oppose that change.

For example, if number of moles increases, the equilibrium shifts in the reaction to decrease the number of moles.

(c)

Interpretation Introduction

Interpretation: For the given reaction, change in equilibrium needs to be explained, if heat is added.

Concept Introduction: The given equilibrium reaction is as follows:

${\text{CS}}_{\text{2}}\left(g\right)+3{\mathrm{Cl}}_2\left(g\right)\rightleftharpoons {\text{CCl}}_{\text{4}}\left(g\right)+{\text{S}}_{\text{2}}{\text{Cl}}_{\text{2}}\left(g\right)+238\text{kJ}$

According to Le Chatelier's principle, if any change in the equilibrium reaction takes place, the equilibrium gets reestablished by shifting in the reaction to oppose that change.

For example, if number of moles increases, the equilibrium shifts in the reaction to decrease the number of moles.

(d)

Interpretation Introduction

Interpretation: For the given reaction, change in equilibrium needs to be explained, if catalyst is added.

Concept Introduction: The given equilibrium reaction is as follows:

${\text{CS}}_{\text{2}}\left(g\right)+3{\mathrm{Cl}}_2\left(g\right)\rightleftharpoons {\text{CCl}}_{\text{4}}\left(g\right)+{\text{S}}_{\text{2}}{\text{Cl}}_{\text{2}}\left(g\right)+238\text{kJ}$

According to Le Chatelier's principle, if any change in the equilibrium reaction takes place, the equilibrium gets reestablished by shifting in the reaction to oppose that change.

For example, if number of moles increases, the equilibrium shifts in the reaction to decrease the number of moles.