Answer the following in brief.
Explain graphically the effect of a catalyst on the rate of reaction.
Comparison of fraction of molecules for catalyzed and uncatalyzed reactions
ii. A catalyst lowers the threshold energy.
iii. Consequently, more molecules acquire the minimum amount of energy and tend to cross the energy barrier.
iv. A fraction of activated molecules is greater for the catalyzed reaction. The rate of catalysed reaction thus is larger than the reaction with no catalyst.