3209. SMITH, D. F., AND BRANTING, B. F. Equilibrium Between Methanol, Carbon Monoxide, and Hydrogen. Jour. Am. Chem. Soc., vol. 51, 1929, pp. 129-139; Chem. Abs., vol. 23, 1929, p. 1337. Equilibrium CH3OH/(CO)(H2)2 at 1 atm. over ZnO and the 4 Zn:1 Cr catalyst of Smith and Hawk (abs. 3210) was studied by a direct method giving K=5.57X10-4 at 303.8°, error=5%. From this equilibrium value and the heat data of Smith (abs. 3206), the free-energy change is ∆ F=-20,857+41.17 T log T -0.01423 T2-54.42 T, giving 16,070 cal. at 700° K. |