John invented a proprietary device that can separate oxygen from air. The device can process $100$ mol$/$s of air at room temperature $(25\backslash$deg C$)$ and pressure $(1$ atm$).$ To simplify the model, lets assume that air is an ideal gas mixture that is made of $78$ vol$\%$ nitrogen and $22$ vol$\%$ percent oxygen. The device operates at room temperature and pressure as well.$($a$)$ The invention disclosure states that, after separation, one gas stream $($stream A$)$ contains $99$ vol$\%$ of oxygen, whereas the other gas stream $($stream B$)$ contains only $95$ vol$\%$ of nitrogen. Calculate the volumetric flow rate of streams A and B leaving the device.$($b$)$ Adam developed a competition device that can separate the air into a gas stream containing $99$ vol$\%$ oxygen and another stream containing $90$ vol$\%$ oxygen. All other operating conditions are the same. Is this design feasible? Why or why not?