Molecular Modeling of Hydrogen Bonding Fluids: Transport Properties and Vapor-Liquid Coexistence
نویسندگان
چکیده
Predictions of the transport properties self-diffusion coefficient and shear viscosity are presented for a recently developed molecular ammonia model. These data show mean unsigned deviations to the experiment over a temperature range from 200 to 500 K of 8 % for the self-diffusion coefficient and 12% for the shear viscosity. Furthermore, the vapor-liquid equilibria of the ternary system carbon dioxide+cyclohexanol+cyclohexane and its binary subsystems are investigated. The modified Lorentz-Berthelot combination rule with one state-independent binary interaction parameter was used for the pairwise unlike dispersive interactions. Per binary subsystem, the parameter was adjusted to a single experimental vapor pressure. The binary subsystems are in good agreement with experimental data throughout the entire composition range. For the ternary system, the vapor pressure is underpredicted by about 12 %.
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