摘要:
The ratios of the partition functions of the tritium halides to their respective protium halides have been calculated. These are combined with one another to give the exchange equilibria between the six pairs of tritium and protium halides. The exchange equilibria with water are calculated. From the exchange equilibria between the tritium halides and protium and the free energy of dissociation of the protium halides, the dissociation equilibria of the tritium halides have been calculated.
The experimental data on the dissociation of HI are reviewed and it is shown that the data of Taylor and Crist on DI and HI are self-consistent as well as in good agreement with theory. The heat of formation of HI at absolute zero, ΔH00, is found to be − 1007±10 calories per mole.