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.