3. In a reactive environment, chemical A decomposes as follows: AR rr = Ca mol/li s A+S rs = 1 mol/li s = The reaction takes place in two backmix reactors in series where Cao = 4 M, Cro = Cso = 0, CA1 = 2M, CA2 = 0.8 M. At this condition the maximum concentration of R is obtained. a. What is the size ratio (V2/V1) of the two reactors? b. What is the concentration of R in the first and second reactor? c. What is the maximum concentration of R in the system