four well-mixed reactors connected in series, operate isothermally in steady state. All the tanks do not have the same volume, but the sum of =203. The component whose concentration is designated by C reacts according to the following reaction mechanism: =in each tank.Determine the values of the tank volumes (really residence times of the component) in each of the four tanks for steady-state operation with a fixed fluid flow rate of so as to maximize the yield of the product 4. Note (/)=, the residence time. Use the following data for coefficients in the problem:=2.5=0.00625[3/()]1.5()10=20/3=713/The units for k are fixed by the constant 0.00625.List:i.The objective functionii.The variablesiii.The equality constraintsiv.The inequality constraintsWhat are the independent variables? The dependent variables?