At ambient temperature, the following second order reaction occurs in an aqueous solution: a+b 20 the reactants enter the first of two continuously stirred tank reactors (cstrs), connected in series, at a volumetric flow rate of 3 x 103 m3 s the initial concentrations of the reactants a and b are equal, prior to entering the first reactor and the reaction rate expression is as follows: -ta=kacac the rate expression has units of kmol m3 s1 the rate constant is (ka) has a value of 5.20 x 103 kmol1 m3 s1. the cstrs are identical in size with a volume of 4 m3, each. the concentration of the second species, component b, leaving the second reactor, is 0.10 kmol m3. at steady state conditions: a) state all of the assumptions associated with the analysis of a cstr b) determine the concentration of component a leaving the first reactor [2 marks] [8 marks [3 marks d) determine the volume of a single cstr that would achieve the same conversion [5 marks c) determine the initial concentration of component a. e) explain whether the process would be better carried out in a single cstr or multiple cstrs