Heats, equilibrium constants, and free energies of formation of the dimethylcyclopentanes

Abstract

For ethylene, propylene, each of the four butenes, six pentenes, and 17 hexenes, and for the higher normal l-alkenes, values are presented for the following thermo- dynamic properties to 1,000° or 1,5000 K: The heat of formation from the ele- ments, D.Hr ; the free energy of formation from the elements, D.Fr; and the logarithm of the equilibrium constant of formation from the elements, 10gIOJ(j. For each of the 6 pentenes and 17 hexenes, values are a lso given to 1,000° or 1,5000 K, for the following properties: The heat-content function, (HO - HoO)/T; the free-energy function, (FO - HoO)/T; the entropy, So; the heat content, HO - Hoo; and the heat capacity, eva. Equilibrium constants and concentrations are given in tabular and graphical form for the isomerization of the 4 butenes, 6 pentencs, and 17 hexenes, as a function of the temperature to 1,0000 or 1,5000 K. Equilibrium constants are also given in tabula r ancl graphical form for some reactions of hydrogenation, dimerization, ancl alkylation.