One kilomole of liquid oxygen, O2, at 93 K, and x kmol of gaseous hydrogen, H2, at 25°C, are fed to a combustion chamber. x is greater than 2, such that there is excess hydrogen for the combustion process. There is a heat loss from the chamber of 1000 kJ per kmol of reactants. Products exit the chamber at chemical equilibrium at 3800 K, 400 kPa, and are assumed to include only H2O, H2, and O.
a. Determine the equilibrium composition of the products and also x, the amount of H2 entering the combustion chamber.
b. Should another substance(s) have been included in part (a) as being present in the products? Justify your answer.