Chapter 13, Problem 13.66SP

(a)

Interpretation Introduction

Interpretation:

From the given equilibrium constant, the equilibrium mixture contains more reactants or products has to be identified.

Concept introduction:

The amount of reactants and products in equilibrium mixture is determined by following results

• When ${\text{K}}_{\text{c}}$ is very large ${\text{K}}_{\text{c}}>{10}^3$, reaction goes to completion. That is concentration of product outweighs reactants.
• When ${\text{K}}_{\text{c}}$ is very small ${\text{K}}_{\text{c}}<{10}^{-3}$, reaction rarely goes to completion. That is concentration of reactants outweighs products
• When ${\text{K}}_{\text{c}}$ is in mid-range ${\text{10}}^{\text{-3}}{\text{ to 10}}^{\text{3}}$, reaction is in equilibrium. That is concentration of reactants and products are equal.

(b)

Interpretation Introduction

Interpretation:

From the equilibrium constant, the equilibrium mixture contains more reactants or products has to be identified.

Concept introduction:

The amount of reactants and products in equilibrium mixture is determined by following results

• When ${\text{K}}_{\text{c}}$ is very large ${\text{K}}_{\text{c}}>{10}^3$, reaction goes to completion. That is concentration of product outweighs reactants.
• When ${\text{K}}_{\text{c}}$ is very small ${\text{K}}_{\text{c}}<{10}^{-3}$, reaction rarely goes to completion. That is concentration of reactants outweighs products
• When ${\text{K}}_{\text{c}}$ is in mid-range ${\text{10}}^{\text{-3}}{\text{ to 10}}^{\text{3}}$, reaction is in equilibrium. That is concentration of reactants and products are equal.