The combustion reaction of methane in a feed contains 20% mole CH4 60% O2 and 20% CO2 and a 90% conversion of the limiting reactant is acheived. Compute the molar composition of the product stream using (1) material balance on molecular species, (2) atomic balance. State the equilibrium of this reaction as well as how many moles of methane didn't react. Solution must comprise balanced equation full limiting reactant determination procedure.