Question

How do catalysts increase reaction rates? *

By increasing the activation energy.
By broadening the energy barrier.
By forming an activated complex with lower energy.
By changing the net thermodynamics of the reaction.

Answer 1

By forming an activated complex with lower energy.

Step-by-step explanation:

When catalyst is added to a reaction , it forms an activated catalyst which has lower activation energy . So initiation of reaction requires less energy and reaction becomes fast .

Hence third option is correct.