Chapter 17, Problem 77A

a.

Interpretation Introduction

Interpretation:

The overall effect on the reaction equilibrium on increasing temperature and volume needs to be explained.

Concept introduction :Le Chatelier principle states that a system at equilibrium when subjected to changes in the system adjusts it self to attain the equilibrium state again.

Answer to Problem 77A

The equilibrium will shift to the left and reverse reaction will be favored.

Explanation of Solution

Since amount of product is more than amount of reactant, increasing volume will decrease the concentration of reactant more. Also, the reaction is exothermic, so increasing the temperature will favour the reverse reaction in accordance with Le Chatelier principle.

b.

Interpretation Introduction

Interpretation:

The overall effect on the reaction equilibrium due to increase in temperature and volume needs to be explained.

Concept introduction:

Le Chatelier principle states that a system at equilibrium when subjected to changes in the system adjusts it self to attain the equilibrium state again.

Answer to Problem 77A

The equilibrium will shift to the right and forward reaction will be favored.

Explanation of Solution

Since amount of product is equal to the amount of reactant, increasing volume will decrease the concentration of reactant and product equally which will nullify each other’s effects. Also, the reaction is endothermic, so increasing the temperature will favour the forward reaction in accordance with Le Chatelier principle.