A scientist measures the standard enthalpy change for this reaction to be -956.2kJmol.4NH₃(g)+5O₂(g)longrightarrow4NO(g)+6H₂O(g) Based on this value and the standard formation enthalples for the other substances, the standard formation enthalpy of H₂O(g) is _____ A) -242.6 kJ/mol B) -285.8 kJ/mol C) -110.5 kJ/mol D) -393.5 kJ/mol
