Please help me with the polymath code

qca - Cocc] The gas phase reactions take place isothermally in a membrane reactor packed with catalyst. Pure A enters the reactor at 24.6 atm and 500K and a flow rate of A of 10 mol/min AJB+C ric= kcCA Kic] AD rp = k zd CA 2C+D+2E re = 3E CCD Only species B diffuses out of the reactor through the membrane. At what point in the reactor is the (a) the concentration of B is a maximum at W = kg (b) the concentration of C is a maximum at W = kg. (c) Explain why the curves look the way they do. Additional Information Overall mass transfer coefficient kp = 1.0 dm/kg catmin kic = 2 dm/kg cat.min Kc = 0.2 mol/dm? kzp = 0.4 dm/kg cat.min kze = 5 dm/mol kg cat.min W = 100 kg