$10\mathrm{.}38.$ Fifty $(50)$ mol$*s^{-1}$ of enriched air $(50$mol$-\%N_2,50$mol$-\%O_2)$ are produced by continuously combining air $(($:$79(mol)-\%N_2,21(mol)-\%O_2\}$ with a stream of pure oxygen. All streams are at the constant conditions $T=25C$ and $P=1\mathrm{.}2(atm).$ There are no moving parts.

$($a$)$ Determine the rates of air and oxygen $(mol*s^{-1}).$

$($b$)$ What is the rate of heat transfer for the process?

$($c$)$ What is the rate of entropy generation $S_G^{}((W)*K^{-1})?$