Q1. Suppose that an enzyme that catalyzes the reaction A + B is immobilized in a gel or porous material that is shaped like a long cylinder (see Fig. 1). The substrate A diffuses into the cylinder from the walls. Assume that the cylinder is long enough so that you can ignore the ends. The reaction follows the rate expression: koCA Km + CA Rya = where ko and Km are constants. The reactor is small enough so that the Damkohler number,