If our feed is $0\mathrm{.}60$ mole fraction, what is the highest vapor mole fraction that we can produce?

$5.(5$ points$)$ If our feed is $0\mathrm{.}60$ mole fraction, what is the lowest liquid mole fraction that we can produce?

$6.(20$ points$)$ In a distillation column, the distillate n$-$hexane mole fraction is $0\mathrm{.}96,$ the reflux ratio is $4,$ the bottoms n$-$hexane mole fraction is $0\mathrm{.}04,$ and the boilup ratio is $2.$ Draw the rectifying and stripping operating lines, step off three equilibrium stages on each line $($starting from the distillate and bottoms mole fractions$),$ label a diagram of a distillation column with the six stages, and make a table of the liquid and vapor mole fractions leaving each of the six equilibrium stages. Show the points on the Txy diagram.