3028.     SARTORI, G., AND NEWITT, D. M.  Influence of Pressure Upon the Water-Gas and Other Equilibria.  Inst. Gas Eng., Copyright Pub. 222-92, 21 pp.; Gas World, vol. 111, 1939, pp. 414-415; Gas Jour., vol. 229, 1940, pp. 32, 81; Chem. Abs., vol. 34, 1940, p. 5337.

        Effect of pressure upon the equilibrium constants of reversible gas reactions is discussed.  At high pressures, the partial pressure of a reactant gas is not a true measure of its active mass, hence, even in gaseous systems in which reaction takes place with no change in density, the value of equilibrium constant K_p shows a drift with progressive changes in the total pressure.  Experimental data for the water-gas reaction over a pressure range of 100 atm. are given.  By replacing partial pressures by equilibrium pressures, a true constant independent of total pressure is obtained.  Compressibility and other derived physical properties of reversible gaseous systems are discussed and illustrated by references to the variation of heat capacity with pressure.