Thermodynamic Properties of Fluorochloromethanes and –Ethanes

Benning, A.; McHarness, R. C.; Markwood, W. H.; Smith, Watson

doi:10.1021/ie50367a025

Cited by 27 publications

(3 citation statements)

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“…The results presented in Table I, calculated by the Lielmezs-Bondi approximate method, are correlated into Equation 1: = + >T + cT2 + dT3 + eT' (1) where is the thermodynamic function and T the temperature in °K. The constants, a, b, c, d, e, associated with Equation 1, were evaluated by means of a digital computer program based upon least squares curve-fitting methods (5) and are given in Table II.…”

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confidence: 99%

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Thermodynamic Functions for Freon 113.

Higgins¹,

Lielmezs²

1965

J. Chem. Eng. Data

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Thermodynamic functions, Cj, Sp, (Ha -H i ) /7, -( -H:)/T, have been calculated for Freon 113 in the ideal gas state at 1 atrn. pressure. The internal rotational contribution has been treated in two ways: by the Lielmezs-Bondi approximate method and with Pitzer-Gwinn's computed value of internal rotational partition function. The agreement between the computed results and the few available experimental vapor state heat capacity values, is satisfactory.

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“…Trans form: " Torsional frequency, see (4,6). 1 Frequency values suggested by Hallam and Ray (4). ' These moment of inertia product values were calculated using Sutton's proposed structural data (10).…”

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Thermodynamic Functions for Freon 113.

Higgins¹,

Lielmezs²

1965

J. Chem. Eng. Data

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“…However, the most stringent test of the method is to estimate the potential parameters and then, using these values, calculate the properties of polar molecules that are not used in the correlation. For this purpose, the viscosities of Freons (Benning and Markwood, 1939) were calculated by the Chapman-Enskog theory (Hirschfelder, et al, 1954) using the estimated parameters which are listed in the lower part of Table I. These values are from Landolt-Bornstein tables (1951) except the polarizability of Freon-21, which was calculated by Brandt (1956) from the bond polarizabilities.…”

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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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