Table 1. Reaction Energies (ΔE's), Enthalpies (ΔHs), and Gibbs Free Energies (ΔGs) of the HPO₃^2– and HPO₄^2– Formation Reactions.^a.

	gas phase			PCM (water)
001-HPO3-P
reaction type	ΔE	ΔH [298]	ΔG [298]	ΔE	ΔH [298]	ΔG [298]
on surface	–109.5	–166.3	–151.9	–56.6	–117.0	–101.3
gas to gas	–13.9	–14.4	–55.9	11.1	–5.5	–58.9
001-HPO4-P
reaction type	ΔE	ΔH [298]	ΔG [298]	ΔE	ΔH [298]	ΔG [298]
on surface	–169.6	–252.1	–227.7	–139.1	–209.5	–193.6
gas to gas	–168.4	–175.9	–228.3	–129.6	–158.6	–204.6

^aIn parentheses, the temperature at which the thermodynamic corrections were calculated. Values are in kJ/mol.