Q. Which reaction characteristics are changing by the addition of a catalyst to a reaction at constant temperature? (i)activation energy (ii)Equilibrium constant (iii)Reaction entropy (iv)Reaction enthalpy

A) (i) only
B) (iii) only
C) (i) and (ii) only
D) All of these
Explanation

(a)
Catalyst affects only activation energy. It brings down activation energy of reaction. Catalyst does not affect equilibrium constant, reaction entropy and reaction enthalpy.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.