What is altered by a catalyst? a) average kinetic energy of products

b) activation energy

c) difference between the energies of products and reactants

d) average kinetic energy of reactants

Effect of Catalysts on the Activation Energy. Catalysts provide a new reaction pathway in which a lower Activation energy is offered. A catalyst increases the rate of a reaction by lowering the activation energy so that more reactant molecules collide with enough energy to surmount the smaller energy barrier.

Explanation:

Your answer is in this

B

Explanation:

A catalyst can speed up the reaction (or make it initaite easier) by altering the activation energy.