Question 2: (25 marks) A system of well-mixed identical tanks (Constant volume V (m³)) and blending is shown in Figure Q1. The delays in the pipes are negligible, the flow rates are constant (Fi (m³/s)), and the streams have the same density. Consider changes in the inlet concentrations CAI and CA2 at same time. For the above described process: iii. ii. i. Derive a dynamic model for CA3, CA4 and CAS. (10 marks) Find the degree of freedom of the entire system. (05 marks) Identify the variables as parameters, input variables, output variables, disturbances and manipulated variables. (10 marks) F₁(m³/s) CAL 8 F3 Blending or Mixing point CA3 tanke A F2 CA2 (mol/m³) FA CA4 tank B Figure Q1 F5, CAS assumptions:- - Constant V, negligible delay of pipes, Fi is