Q1: A solution composed of 50 wt% ethanol (EtOH), 10 wt% methanol (MeOH), and 40 wt% water (H2O) is fed at the rate of 100 kg/h into a separator that produces one stream at the rate of 60 kg/h with the composition of 80 wt% EtOH, 15 wt% MeOH, and 5 wt% H2O, and a second stream of unkown composition. Draw and label a flowchart of this process and do the degree-of-freedom analysis. Calculate the compostion in wt% of the three compounds in the unkown stream and its flowrate in kg/h. Q2: A liquid adhesive, which is used to make laminated boards, consists of a polymer dissolved in a solvent. The amount of polymer in the solution has to be carefully controlled for this application. When the supplier of the adhesive receives an order for 3000 kg of an adhesive solution containing 13 wt% polymer, all it has in hand is (1) 500 kg of a 10 wt% solution, (2) a very large quantity of a 20 wt% solution, and (3) pure solvent. Draw and label a flowchart of this process and do the degree-of-freedom analysis. Calculate the mass of each of the three stocks that must be blended together to fill the order. Use all of the 10 wt% solution. Q3: You are asked to measure the rate at which waste gases are being discharged from a stack. The gases entering contain 2.1 mole% carbon dioxide. Pure carbon dioxide is introduced into the bottom of the stack at a measured rate of 4.0 lb./min. You measure the dischrage of gases leaving the stack, and find the concentration of carbon dioxide is 3.2 mole%. Draw and label a flowchart of this process and do the degree-of-freedom analysis. Calculate the rate of flow in lb-mol/min, of the entering waste gases