Explanation: A catalyst affects activation energy; an inhibitory catalyst increases activation energy. Catalysts do not affect equilibrium concentrations of products or reactants.

What increases activation energy?

The minimum energy needed for a reaction to proceed, known as the activation energy, stays the same with increasing temperature. ... An increase in temperature causes a rise in the energy levels of the molecules involved in the reaction, so the rate of the reaction increases.

Does a catalyst increase the activation energy Why or why not?

A catalyst provides an alternative route for the reaction with a lower activation energy. It does not "lower the activation energy of the reaction".