Acetylene gas $(C_2{H}_2)$ at $25C,1$ atm enters a reactor operating at steady state and burns with $40\%$ excess air entering at $25C,1$atm,$80\%$ relative humidity. An equilibrium mixture of $C{O}_2,H_{2}O,O_2,NO,$ and $N_2$ exits at $2200K,0\mathrm{.}9$atm. Determine, per kmol of $C_2{H}_2$ entering, the composition of exiting mixture. The saturation pressure of $H_{2}O$ at $25C,1$atm is $3\mathrm{.}169$kPa. The equilibrium constant of the reaction $\frac{1}{2}{O}_2+\frac{1}{2}{N}_{2}NO$ is $0\mathrm{.}0323$ at $2200K.$