Calculate the standard enthalpy of formation of liquid water (H2O) using the following thermochemical information:
N2(g) + 3 H2(g) <=> 2 NH3(g) Delta H = -92.4 kJ
2 NO(g) <=> N2(g) + O2(g) Delta H = -180.7 kJ
4 NH3(g) + 5 O2(g) <=> 4 NO(g) + 6 H2O(l) Delta H = -1167.1 kJ