Liquid ethanol $($C$2$H$5$OH$)$ at $25$C$,1$ atm enters an insulated reactor operating at steady state and burns completely with air entering at $370$ K$,1$ atm. The combustion products exit at $1000$ K$.$ Kinetic and potential energy effects can be neglected and the air can be modeled as $21\%$ O$2$ and $79\%$ N$2$ on a molar basis.