Chapter 16, Problem 12E

Interpretation Introduction

Interpretation:

The energy profile diagram for the endothermic reaction involving formation of hydrogen iodide, $\text{HI}$ is to be drawn. The axes for energy and axes for progress of reaction are to be labeled. The reactants, products, transition state, activation energy, energy of reaction are to be labeled.

Concept introduction:

Reaction profile diagram shows the change in energy as the reaction progress. Transition state is the topmost point on reaction profile diagram where bond breaking and new bonds formation takes place. Activation energy is the amount of energy required to convert reactants into transition state. In endothermic reaction, heat is absorbed. In exothermic reaction, heat is evolved.