You wish to remove solute Q from a heavy oil stream by stripping the oil with air. The stripper is expected to operate at $60\backslash$deg C and $2\mathrm{.}2$ atm pressure. At this temperature and pressure the oil can be considered to be nonvolatile and the air is insoluble in the oil. The inlet liquid flows at $100$ kgmole$/$hr $($total flow$)$ and is $20$ mole$\%$ Q$.$ You wish to reduce the concentration of Q in the oil to $1$ mole$\%$ Q$.$ The inlet air stream is terribly polluted $($probably by your plant$)$ and contains $0\mathrm{.}2$ mole$\%$ Q$.$ Equilibrium data taken in your laboratory $($which you trust totally$)$ indicate that at $60\backslash$deg C and $2\mathrm{.}2$ atm y $=1\mathrm{.}5$x $($where y and x are mole fractions of Q in the air and oil, respectively$).$ What is the minimum flowrate of the entering stream of air $($including the Q mole fraction$)$ required to achieve the desired cleanup, corresponding to an infinite number of stages? How many ideal stages will be required if the column operates at $1\mathrm{.}5$ times the minimum gas flowrate?