Problem 5 (15 pts). The following PDE describe diffusion and reaction of a dissolved aqueous species near a substrate surface: subject to the following initial and boundary conditions c(z = 0, t) C(z, t = 0) = 0, where C is the concentration, t is the time variable, and z is the spatial coordinate. Using method of lines together with forward Euler (Ax=0.05 and 0.001), write a VBA script to solve for C(x,t). Plot C(x,t1) againstOSSI. Problem 5 (15 pts). The following PDE describe diffusion and reaction of a dissolved aqueous species near a substrate surface: subject to the following initial and boundary conditions c(z = 0, t) C(z, t = 0) = 0, where C is the concentration, t is the time variable, and z is the spatial coordinate. Using method of lines together with forward Euler (Ax=0.05 and 0.001), write a VBA script to solve for C(x,t). Plot C(x,t1) againstOSSI