Ethanol-water is a highly non-ideal system. On the next page, you will find a Txy diagram (and an xy diagram) for the system at 97kPaa. A flash cascade as shown in the figure is being operated at steady state in a laboratory to separate a 10gmol/h saturated liquid feed consisting of ethanol and water at a temperature of 80C,97kPaa. It consists of three flash drums, FD1, FD2 and FD3 operating at the temperatures given in the figure. Report all compositions in mol fraction of ethanol. Attach the marked figure to your assignment when you submit it. a) Which side of the x-axis is pure ethanol, which is pure water? Justify your answer using data from the appendices in FRB. Label the regions L,V, and L+V. b) Locate and label the compositions of all streams on the T-xy diagram, i.e., x1,x2,x2,x1,y1,y2 y3 c) What is the purity (mol fraction ethanol) of stream V1? What are the flow rates (in gmol/h) of V1 and L3 ? What is the recovery of ethanol in stream V1 ? Show the ethanol balance for the system. In doing your calculations, you may find the xy diagram helpful to get more accurate values of x and y. d) Create a stream table, and solve for the flow rates of both species, in each stream (use the labels Lj, Vj for the streams). e) Look at the Txy diagram. Comment on how easy it would be to continue to purify ethanol beyond a mole fraction of 75mol% using more flash stages. What about making a stream of very pure water