(B) catalyst provides an alternative reaction pathway with a lower activation energy $(E_a)$.By lowering the activation energy,a larger fraction of re

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To change the reaction path so as to decrease the energy of activation for the reaction

(B) catalyst provides an alternative reaction pathway with a lower activation energy $(E_a)$.By lowering the activation energy,a larger fraction of reactant molecules possess sufficient energy to cross the energy barrier at a given temperature,thereby increasing the rate of the reaction.

Class 12 Chemistry Surface Chemistry Catalyst and Catalysis

Easy

The main function of a catalyst in speeding up a reaction is

A
To increase the rate of the forward reaction
B
To change the reaction path so as to decrease the energy of activation for the reaction
C
To reduce the temperature at which the reaction can occur
D
To increase the energy of the molecules of the reactants