Q.
Assertion If the activation energy of a reaction is zero, temperature will have no effect on the rate constant. Reason Lower the activation energy, faster is the reaction.
According to Arrhenius equation, k=Ae−Ea/RT when, Ea=0,k=A From the Arrhenius equation, it is also clear that lower the value of Ea, higher is the value of k and thus, faster is the reaction.