Chapter 18, Problem 17E

Interpretation Introduction

Interpretation:

The similarity and the difference between the processes in which two substances react to reach equilibrium with and without a catalyst are to be stated.

Concept introduction:

A reaction is said to be in equilibrium if the rate at which the forward reaction takes place becomes equal to the rate at which the backward reaction takes place. If any of the factors that affect the equilibrium changes, then the reaction shifts in either forward or backward direction so that the equilibrium condition is reestablished.