5 points) Consider a reversible, gas-phase, elementary reaction 2AB+C carried out in a CSTR: (15 points) Write down the expression for the rate of disappearance of A(rA) in terms of the forward reaction rate constant (kA), the concentrations of A,B, and C(CA,CB, and CC), and the equilibrium constant (Kc), which is the ratio between the forward and reverse reaction rate constants. Express the units for kA and Kc in terms of mol,dm3, and min. Assume the operation is isothermal and isobaric across the reactor. b) (10 points) If CA0=5mol/dm3 and no B and C are at the entrance, the equilibrium constant K =4.0 (with the units determined in part (a)), please determine the equilibrium conversion Xe under this reaction condition. (c) (10 points) Following (b), if the initial volumetric flow rate entering the CSTR is 2dm3/min, what is the size of the reactor needed to achieve a conversion of 0.5Xe ? Assume that the value of the forward reaction rate constant (kA) is 4 (with the units determined in part (a))