Xin the reaction a b + c + heat, there is a net input of energy the potential energy of the products is greater than that of the reactant the potential energy of the products is the same as that of the reactant the potential energy of the products is less than that of the reactant entropy has decreased

Option (d) is the correct answer.

Explanation:

A chemical reaction in which heat energy is liberated is known as an exothermic reaction.

For example,

In an exothermic reaction, energy of reactants is more than the energy of products.

This means that potential energy of products is less than the potential energy of reactants.

Thus, we can conclude that in the reaction , the potential energy of the products is less than that of the reactant.

prolly a beacuse the momentuem the car has increases while going down hill

it has to be b, about 97 percent.