Enter your answer in the provided box. Given the following thermochemical equations, NO(g)+O3(g)NO2(g)+O2(g)O3(g)23O2(g)O2(g)2O(g)H=198.9kJ/molH=142.3kJ/molH=+495kJ/mol determine the enthalpy change for the reaction 2NO2(g)2NO(g)+O2(g)H=kJ/mol