Question

According to the collision theory and the model created to explain the collision theory, why does a catalyst cause a reaction to speed up?

It lowers the required activation energy.
It increases the collisions per minute.
It increases the average kinetic energy of the particles.
It increases the kinetic energy and the collisions per minute.

Answer 1

Catalysts lower the activation energy of a chemical reaction. Catalyst is a substance that speeds a chemical reaction. It is not consumed as the reaction proceeds. A catalyst offers a new route for faster reaction.