A paper by Ruckenstein and Tsai (1981)* shows that an "optimum pore size" can exist for catalytic reactions of large solute molecules in solvent-filled pores. Obtain the paper from your library and read it carefully. Then derive the analytical equation for the optimum pore size (λopt in the paper) using the expression for De given by equation (11) of the paper. Finally, attempt to verify by calculation λcpt = 0.18, as claimed by the authors in equation (15) of the paper.
