Estimation of Properties of Dilute Polar Gases from a Potential Energy Function

Bae, Jae Ho; Reed, T. M.

doi:10.1021/i160021a010

Cited by 36 publications

(18 citation statements)

References 6 publications

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“…Although his technique is entirely empirical, in that it gives no basis for the temperature dependence of the parameters, it is able to correlate viscosities and virial coefficients as a function of temperature with one set of values of the parameters at each temperature. The parameters for Equations 1, 2, and 3 that fit transport properties in the present scheme do not give the correct second virial coefficients (Bae and Reed, 1967).…”

mentioning

confidence: 80%

“…Bae and Reed (1967) obtained the potential parameters from experimental viscosities available in the literature, covering broad temperature ranges from 200 to 1800°K.…”

Section: Principle Of Corresponding Statesmentioning

confidence: 99%

“…The potential parameters, e" and r°, of this model were determined previously by applying the Chapman-Enskog dilute gas theory to experimental viscosities for several polar molecules (Bae and Reed, 1967). However, for any potential model to be useful in predicting properties of substances, there must be a method of estimating the parameters from Figure 1.…”

mentioning

confidence: 99%

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A Correlation of Molecular Parameters for Transport Properties of Polar Gases

Bae¹,

Reed²

1971

Ind. Eng. Chem. Fund.

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A method is presented for estimating the dispersion-energy parameters of the canonically averaged pair potential energy function for polar molecules. The empirical parameters are correlated with critical temperature and polarizability through the principle of corresponding states and the Mavroyannis-Stephen dispersion theory. The method predicts viscosities and diffusivities of dilute gas mixtures which are within experimental uncertainty of measured values.

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mentioning

confidence: 80%

“…Bae and Reed (1967) obtained the potential parameters from experimental viscosities available in the literature, covering broad temperature ranges from 200 to 1800°K.…”

Section: Principle Of Corresponding Statesmentioning

confidence: 99%

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A Correlation of Molecular Parameters for Transport Properties of Polar Gases

Bae¹,

Reed²

1971

Ind. Eng. Chem. Fund.

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“…where the theoretical unlike interaction energy (Bae and Reed, 1967) has been modified in a manner exactly analogous to t h a t for pure components (Winnick, 1972).…”

Section: Nonpolar Parametersmentioning

confidence: 99%

“…Instead, the dipoleinduced dipole energy is obtained from the first term in the theoretical expression (Bae and Reed, 1967) for simple pairs. Instead, the dipoleinduced dipole energy is obtained from the first term in the theoretical expression (Bae and Reed, 1967) for simple pairs.…”

Section: Dipole-induced Dipple Mixture Parametersmentioning

confidence: 99%

Thermodynamics of Mixtures Containing Polar Liquids

Winnick¹

1973

Ind. Eng. Chem. Fund.

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c 250 (1965). ip = tortuosity factor, defined by eq 26 380 (1971). V = kinematic viscosity, cm*/sec q p~ pp Pt= energy dissipation rate in slurry per unit mass of = porosity of carbon particles = eddy size, defined by eq 18 = density of particle-free liquid, g/cma = density of carbon particles, g/cma = density of solid Phase, true density, of carbon Par-particle-free liquid, ergs/(g sec)The partition function for polar liquids i s extended to mixtures using Scott's two-fluid theory. The resulting expressions for the excess functions are tested against data for ten polar-polar and ten polar-nonpolar systems. One empirical mixture parameter i s required for each system. Its value is set using an excess enthalpy datum. Good representation of the entire excess enthalpy and volume curves is found for most systems, including those which are "cubic" in appearance. Excess entropy predictions are nearly always too high due to the degree of disorder assumed in the model.

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Thermodynamic properties of supercritical fluids and their mixtures at very high pressures

Breedveld

Prausnitz

1973

AIChE Journal

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Experimental and estimated PVT data for simple fluids at very high pressures have been correlated with corresponding states theory. Generalized tables and charts are given for density, enthalpy, fugacity, and internal energy for the reduced temperature range 1 to 50 and for reduced pressures to 2000. Consideration is given to possible solidification at very high pressures and to applicability of the reduced charts to quantum fluids, water and ammonia, through temperature‐dependent effective critical constants. The van der Waals two‐fluid model of binary mixtures is used to calculated properties of mixtures including the composition of coexisting phases. The correlations presented here are useful for estimating thermodynamic properties at very high pressures.

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Estimation of Properties of Dilute Polar Gases from a Potential Energy Function

Cited by 36 publications

References 6 publications

A Correlation of Molecular Parameters for Transport Properties of Polar Gases

A Correlation of Molecular Parameters for Transport Properties of Polar Gases

Thermodynamics of Mixtures Containing Polar Liquids

Thermodynamic properties of supercritical fluids and their mixtures at very high pressures

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