Question

What information does the potential energy diagram reveal about a reaction?

A. It shows what the enthalpy of formation is for each molecule.
B. It shows the changes in kinetic energy of the molecules.
C. It shows what phase changes occurred during the reaction.
D. It shows whether the reaction is exothermic or endothermic.

Answer 1

Answer: It shows whether the reaction is exothermic or endothermic.

Step-by-step explanation:

• If the potential energy of the products is greater than that of the reactants, then the reaction is exothermic.
• If the potential energy of the reactants is greater than that of the products, then the reaction is endothermic.