Silicon is also used in the manufacture of optical fibers, silane (SiH4) is also deposited by CVD as in the first problem, but this time the conditions are 298K and 1 atm. In this problem assume that the fibers have a porosity of 0.565, tortuosity of 4.3, and a pore diameter of 16 angstroms
a Calculate the Knudsen number for diffusion inside these pores
b Calculate the effective diffusivity of silane under these conditions