3394.     THOMPSON, M. DEK.  Specific-Heat Equations for Carbon Dioxide, Carbon Monoxide, Steam, Hydrogen and Oxygen, and the Free-Energy Equation for the Water-Gas Reaction.  Trans. Electrochem. Soc., vol. 82, 1942, pp. 397-402; Chem. Abs., vol. 36, 1942, p. 6388.

        Least-square solutions for the specific-heat equations of the above gases are worked out for the forms C(p)=a+bT+cT2, C(p)=a+bT+cT-2, and C(p)=a+bT+cT-1/2, and the sums of the squares of the deviations of C(p), Σ dev.2, calculated by each equation, from the experimental values are compared.  The equation giving the smallest Σ dev.2 being the best, it is found that, for the temperature range 300-3,000 or 3,500 K., the T2 equation is the best for CO and steam, the T-2 equation is the best for H2, and the T-1/2 equation is the best for CO2 and for O2.  The equation for ∆ G of the water-gas reaction is then computed, and the values of log K computed by this equation are compared with the values obtained directly from spectroscopic observations.

        THOMPSON, O. F.  See abs. 451, 452, 453.