In certain composition ranges of mixtures of ethylene tetrachloride (C2Cl4), isopropyl alcohol, and water separate, if given enough time, into two liquid phases. A table of eqilibirium data is shown below: The left-hand side of the table shows the compositions in the lower layer and the right-hand side shows the compositions of the upper layer in equilibrium with that composition. In the process for today, 100 lbs of a composition of 40%-by-mass C2Cl4, 38%-by-mass isopropyl alcohol and 22%-by-mass water is initially mixed and then allowed to separate. Lower layer %-by-mass Upper layer %-by-mass C2Cl4 isopropyl alcohol water C2Cl4 isopropyl alcohol water 100 0 0 0 0 100 94 5 1 1 33 66 88 10 2 21 49 30 82 15 3 35 46 19 76 20 4 20 38 12 a. Draw a schematic of this process. b. Based on your drawing, conduct a degree of freedom analysis. Is this problem solvable? Justify your answer. c. Assuming that the lower level contains 10%-by-mass isopropyl alcohol, what is the mass of each of the two phases formed?

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