Consider the following gas phase reaction: 4 NH3 (g) + 4 NO (g) + O2 (g) → 4 N2 (g) + 6 H2O (g) How many litres of H2O will be produced when 25.0 L of NH3 are reacted with excess NO and O2? Assume that the volumes of the reactants and products are measured at constant pressure and temperature.