Which action would reduce the activation energy of a chemical reaction? a. adding a catalyst to the reaction b. adding more reactants to the reaction vessel c. lowering the potential energy of the products d. lowering the potential energy of the reactants e. raising the temperature of the reaction

Option (A) is the correct answer.

Explanation:

A catalyst is a substance which helps in increasing the rate of a reaction without itself getting consumed in the reaction.

A catalyst lowers the activation energy of a reaction so that reactant molecules with less energy can easily participate into the chemical reaction and thus, product formation becomes faster.

Thus, we can conclude that adding a catalyst to the reaction would reduce the activation energy of a chemical reaction.

A

Explanation:

#edmentumgang

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.

the answer would be a