A catalyst reduces the activation energy of a process.. The answer is true
How is activation energy related to temperature?
Consider what must occur for ClNO2 to react with NO to understand why reactions have an activation energy.
First and foremost, these two molecules must clash in order to organise the system.
Not only must they be brought together, but they must also be kept in precisely the appropriate orientation relative to one other in order for the reaction to occur.
Some energy must also be used in order to break the Cl-NO2 bond and allow the Cl-NO bond to form.
