Chapter 22, Problem 98A

a.

Interpretation Introduction

Interpretation: To describe the effect of temperature on the equilibrium position in the given reaction.

Concept Introduction: When there is an increase in the number of reactants or products in a chemical reaction at equilibrium, this change is termed an equilibrium position.

Answer to Problem 98A

While decreasing the temperature, the position of equilibrium will be shifted towards the backward direction or left-hand side.

The reaction favors reactants.

Explanation of Solution

The chemical at the equilibrium is given as follows:

  ${\text{CaCO}}_3\left(s\right)+\text{Heat}\rightleftharpoons \text{CaO}\left(s\right)+{\text{CO}}_2\left(g\right)$

The temperature affects the equilibrium position. On increasing the temperature, the equilibrium will shift to the forward direction or in the direction that absorbs heat.

While decreasing the temperature, the position of equilibrium will be shifted towards the backward direction or left-hand side.

b.

Interpretation Introduction

Interpretation: To describe the effect of carbon dioxide on the equilibrium position in the given reaction.

Concept Introduction: When there is an increase in the number of reactants or products in a chemical reaction at equilibrium, this change is termed an equilibrium position.

Answer to Problem 98A

On removing carbon dioxide, the position of equilibrium will be shifted towards the forward direction or right-hand side.

The reaction favors the products.

Explanation of Solution

The chemical at the equilibrium is given as follows:

  ${\text{CaCO}}_3\left(s\right)+\text{Heat}\rightleftharpoons \text{CaO}\left(s\right)+{\text{CO}}_2\left(g\right)$

When the concentration of any reactant or product is changed, the equilibrium gets disturbed. When carbon dioxide is removed from the reaction, then this decrease in the concentration of carbon dioxide decreases the rate of the reverse reaction.

Thus, on removing carbon dioxide, the position of equilibrium will be shifted towards the forward direction or right-hand side.