Question

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

Explanation:

Step1: Recall heat - of - reaction definition

The heat of the reaction ($\Delta H$) is the difference in potential energy between the reactants and the products.

Step2: Identify reactants and products on graph

On the potential - energy diagram, the potential energy of the reactants is represented by the energy at point A and the potential energy of the products is represented by the energy at point D.

Step3: Determine $\Delta H$

$\Delta H$ is the vertical distance between the energy of the reactants and the energy of the products, which is represented by E.

Answer:

E