13B The gas-phase reactions take place isothermally in a membrane reactor packed with catalyst. Pure A enters the reactor at 24.6atm and 500K, and a flow rate of A of 10mol/min. AB+CAD2C+D2Er1C=k1C[CAK1CCBCC]r2D=k2DCAr3E=k3ECC2CD Only species B diffuses out of the reactor through the membrane. Additional Information: Overall mass-transfer coefficient kC=1.0dm3/kg-cat min k1C=2dm3/kgcatminK1C=0.2mol/dm3k2D=0.4dm3/kg-catmink3E=5.0dm3/mol2kg-catminWf=100kg=0.008kg1 (a) Plot and analyze the concentrations down the length of the reactor. (b) Explain why your curves look the way they do