Correct Answer: decreases the energy barrier for reaction.
2. If the time required to complete a definite fraction of reaction varies inversely as the concentration of the reactants, then the order of reaction is
9. 'If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process'. The diffusivity under this condition is called 'Knudsen diffusivity', which is affected by the