(Q1-7) Species A diffuses into a cylindrical pore where it reacts at the cylindrical surface to produce B (A B) according to a zero order reaction rAlmol/cm2xs) = - Kq where k = 1.2x10-6 mol/cm2xs. There is no reaction at the end of the pore and the end is impermeable to A. The inside diameter of the pore is 0.1 cm and its length L = 1.0 cm. You can assume CA(z) is a function of z where z is the distance along the pore with z = 0 at the entrance to the pore. The diffusivity of A in the pore is DAB = 0.06 cm2/s and CA(z = 0) = Cao = 2.5x10-3 mol/cm. The inside pore diameter is D. The concentration of A is give by: Ca(z) = B4z2 + B22 +B3. The numerical value (with proper units) of B3 is: 2.5x10-3 mol/cm3 - 2.5x10-3 mol/cm3 2.5x 10-3 mol/cm - 2.5x10-3 mol/cm None of the given answers