The theoretically calculated variation in the potential energy of methane molecules with distance from the graphite surface, and the approximate model of their motion along the surface as being nonlocalized adsorption with harmonic oscillations perpendicular to the surface have been used to make a molecular statistical calculation of the changes in the thermodynamic functions of methane when it is adsorbed on the basal plane of graphite at small surface filling. The theoretically calculated change in the total energy of methane at small surface fillings is very nearly the same as the heat of adsorption found by experiment.
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N. N. Avgul', A. V. Kiselev, and I. A. Lygina, Izv. AN SSSR, Otd. Khim. 8 (1962).
N. N. Avgul', A. V. Kiselev, I. A. Lygina, and E. A. Mikhailova, Izv. AN SSSR. Otd. Khim. 769 (1962).
A. V. Kiselev and D. P. Poshkus, Dokl. AN SSSR,132, 876 (1960); Trans. Faraday Soc.58 (1962); Zh. Fiz. Khimii (in press).
A. D. Crowell, J. Chem. Phys.29, 446 (1958).
N. N. Avgul', A. A. Isirikyan, A. V. Kiselev, I. A. Lygina, and D. P. Poshkus, Izv. AN SSSR. Otd. Khimii, 1314 (1957); 1196 (1959).
R. M. Barrer, Proc. Roy. Soc. A 161, 476 (1937).
A. V. Kiselev and D. P. Poshkus, Zh. Fiz. Khimii,32, 2824 (1958).
J. Kirkwood, Phys.-Z.33, 57 (1932).
J. R. Sams, G. D. Halsey, and G. Constabaris, J. Phys. Chem.65, 367 (1961).
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Avgul', N.N., Kiselev, A.V. & Lygina, I.A. Molecular statistical calculation of the change in the thermodynamic functions when CH4 is adsorbed on graphite. Russ Chem Bull 11, 1271–1274 (1962). https://doi.org/10.1007/BF00907967
- Total Energy
- Potential Energy
- Harmonic Oscillation