an enzyme with km= 2.0x10^-3 and Vm'= 1.5x10^-6 mol/s-cm^2 is immobilized on a nonporous surface. The bulk substrate concentration is 7.5x10^-5 mol/mL and the reaction vessel is mixed to yield a mass transfer coefficient of 2.0x10^-5 cm/s. Determine the steady state rate of reaction per unt surface area in the system.