According to the collision theory and model created to explain the collision theory, why does a catalyst cause a reaction to speed up? (2 points)

a.It lowers the activation energy.
b.It increases the average kinetic energy of the particles.
c.It increases the kinetic energy and the collisions per minute.
d.It increases the collisions per minute.

it's either A or D. not sure which one! please help!

Question

According to the collision theory and model created to explain the collision theory, why does a catalyst cause a reaction to speed up? (2 points)

a.It lowers the activation energy.
b.It increases the average kinetic energy of the particles.
c.It increases the kinetic energy and the collisions per minute.
d.It increases the collisions per minute.

it's either A or D. not sure which one! please help!

anonymous · Answer

A. Catalysts lower the activation energy.