Oxygen difluoride, OF2, is a colorless, poisonous gas that reacts rapidly with water vapor to produce O2, HF, and heat.
OF2(g) + H2O(g) --> 2HF(g) + O2(g) + 324.4 kJ
What is the molar enthalpy of formation of OF2 (g)?
delta H of formation H2O = -241.8 kJ/mol
delta H of formation HF = -271.1 kJ/mol