Given the potential energy diagram representing a reaction below, which numbered interval represents the heat of reaction?

The potential energy diagram has been representing the heat of reaction at interval 2.

The heat of reaction has been defined as the difference in the heat of product and reactant. The potential energy has been the stored energy of the compounds.

In the given potential energy curve, the heat of reaction has been found to be the increase in potential energy. There has been an increment in the energy at interval 2.

Thus, the potential energy diagram has been representing the heat of reaction at interval 2.

For more information about potential energy, refer to the link:

link

2

Explanation:

Heat of reaction is usually the difference of heat of products and heat of reactions. The difference here is represented by the letter 2.

i'm pretty sure its b i might be wrong though!