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Self-diffusion in the compressed fluid lower alkanes: Methane, ethane, and propane (1991)

Greiner-Schmid, A. ; Wappmann, S. ; Has, M. ; [et al.]

College Park, Md. : American Institute of Physics (AIP)

The Journal of Chemical Physics 94 (1991), S. 5643-5649

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ISSN: 1089-7690

Source: AIP Digital Archive

Topics: Physics , Chemistry and Pharmacology

Notes: Self-diffusion coefficients D for CH4, C2H6, and C3H8 have been measured at pressures up to 200 MPa and 450 K by the spin echo technique with pulsed field gradients. The experimental results for propane agree with data obtained by recent M. D. simulations with a three-site Lennard-Jones-skeleton model. In the p,T range studied, the experimental self-diffusion coefficients can be described quantitatively by the interacting sphere model and the rough hard sphere model. This implies, that even a single Lennard-Jones potential and diameter can represent the dynamic data for propane quantitatively.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.460474

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