Chapter 18, Problem 86A

Interpretation Introduction

Interpretation : A reaction progress curve for a reaction is to be sketched.

Concept Introduction : The activation energy is the minimal amount of energy required for interacting particles to respond.

Answer to Problem 86A

A reaction progress curve for a reaction is as follows:

  

Explanation of Solution

The activation energy is $\text{22}\text{kJ}$ .

The total energy change is $-103\text{kJ}$ .

A graph that depicts the connection between energy and reaction progress is called a reaction coordinate diagram.

The quantity of energy that must be added is known as the activation energy, and it can be found on the graph at the location where the line curves upward.

The reaction progress curve is given below:

  

Since the total energy change is negative, the product is at least energy.