Air and carbon dioxide are mixed in a simple $"T"$ pipe. Air at $3$atm pressure and $30$

$C$ enters one end of the $"T"$ at a flow rate of $2$kmo$\frac{l}{m}in.$ Carbon dioxide at $3$atm

pressure and $30C$ enters the other end of the $"T"$ at a flow rate of $4$kmo$\frac{l}{m}in.$ The

two gas streams exit from the middle of the $"T",$ still at $3$atm and $30C.$

$($a$)$ Calculate the concentration of $C{O}_2$ entering in $k\frac{g}{m^3}.$

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$($b$)$ Calculate the concentration of $N_2$ entering in the air stream in lbmo$\frac{l}{f}{t}^3.$

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$($c$)$ Calculate the concentration of $C{O}_2,$ exiting in $mo\frac{l}{c}{m}^3.$

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$($d$)$ Calculate the concentration of Onot$2$ exiting in kmo$\frac{l}{m^3}.$

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Take air to comprise $79$ mole $\%$ nitrogen and $21$ mole $\%$ oxygen. The molecular

weight of $C{O}_2$ is $44\mathrm{.}01.R=0\mathrm{.}082057L.at\frac{m}{K}*mol$