Effective diffusivity (DE) in a catalyst pellet is related to molecular
diffusivity (DN) and Knudsen diffusivity (DK) as
(A) DE = DM + DK
(B) 1/DE = 1/DN + DK
(C) DE = DM . DE
(D) DE = DN/DE
diffusivity (DN) and Knudsen diffusivity (DK) as
(A) DE = DM + DK
(B) 1/DE = 1/DN + DK
(C) DE = DM . DE
(D) DE = DN/DE