A feed containing $10 \mathrm{~mol} \%$ propylene, $15 \mathrm{~mol} \%$ ammonia and rest air is charged into a reactor to produce acrylonitrile $\left(\mathrm{C}_{3} \mathrm{H}_{3} \mathrm{~N}\right)$ according to the following reaction.
\[
2 \mathrm{C}_{3} \mathrm{H}_{6}+2 \mathrm{NH}_{3}+3 \mathrm{O}_{2} \rightarrow 2 \mathrm{C}_{3} \mathrm{H}_{3} \mathrm{~N}+6 \mathrm{H}_{2} \mathrm{O}
\]
Assume, air contains $80 \mathrm{~mol} \% \mathrm{~N}_{2}$ and $20 \mathrm{~mol} \% \mathrm{O}_{2}$.
If the conversion of the limiting reactant is $30 \%$, the composition of $\mathrm{C}_{3} \mathrm{H}_{3} \mathrm{~N}$ (in $\mathrm{mol} \%$ ) in the product stream is $\_\_\_\_$ (rounded off to two decimal places).
