Calculate the standard reaction enthalpy
for the final stage in the production of nitric
acid, when nitrogen dioxide dissolves in and
reacts with water:
3 NO2(g) + H2O(l) → 2 HNO3(aq) + NO(g).
The standard enthalpy of formation
for HNO3 is -207.36 kJ/mol, for NO
90.25 kJ/mol, for NO2 33.18 kJ/mol, and
for H2O-285.83 kJ/mol.