Question

try it: energy of reactions
which of the following represents the activation energy?
potential energy
reaction progress
d
b
a
e
c

Explanation:

Step1: Recall activation - energy definition

Activation energy is the minimum energy required for reactants to form products. It is the energy difference between the reactants and the transition - state.

Step2: Identify reactants and transition - state on graph

On the potential - energy vs reaction - progress graph, the reactants are at point A and the transition - state is at point C. The energy difference between them is represented by the vertical distance B.

Answer:

B