The reaction profiles for four reactions are shown below. Which one has the largest activation energy?

Question

Quizplus · Accepted Answer

The activation energy is the energy required for the reactants to reach the transition state and form products. The difference in energy between the reactants and the transition state is represented by the height of the activation energy barrier. Thus, the reaction with the highest activation energy would be the one with the highest barrier, which is represented by graph II.

The Reaction Profiles for Four Reactions Are Shown Below