𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Remarks on the determination of the Wilson constants in the correlation of vapour—liquid equilibrium data

✍ Scribed by Lucien A.J. Verhoeye

Publisher
Elsevier Science
Year
1970
Tongue
English
Weight
555 KB
Volume
25
Category
Article
ISSN
0009-2509

No coin nor oath required. For personal study only.

✦ Synopsis

For homogeneous systems the equation of Wilson has been shown to be very suitable for the correlation of activity coefficients derived from vapour-liquid equilibrium data. A general survey of minimizing criteria and methods suitable for the determination of the constants of this equation is described. This allows their significance and their mutual differences to be elucidated. A method awarding a statistical weight to each experimental point is developed. An attempt is made to determine a quantitative criterion for comparison of correlation methods and to elucidate what part of the deviation got by different methods and/or by means of different sets of data is real and what part is due to the randomness of the data.

📜 SIMILAR VOLUMES

On smoothing in the direct vapor-liquid
On smoothing in the direct vapor-liquid equilibrium data correlation methods
✍ T. Hofman 📂 Article 📅 1985 🏛 Elsevier Science 🌐 English ⚖ 398 KB

NOTATION C\* bulk concentration of reactant, molcm-' d, particle diameter, cm D effective diffusivity, cm\* s-' F global rate, mol (s cm")-' r true reaction kinetic rate, mol (scm")) \* r' derivative of the true reaction kinetic rate with concentration, evaluated at C,. s-'

Some properties of the NRTL equation in
Some properties of the NRTL equation in correlating liquid—liquid equilibrium data
✍ Robert A. Heidemann; Jamanlal M. Mandhane 📂 Article 📅 1973 🏛 Elsevier Science 🌐 English ⚖ 713 KB

The NRTL equation proposed by Renon and Prausnitz has been discovered to have some properties that may complicate its use. Specifically, there is more than one set of parameters, r,\* and Q,, which fit given solubility data with a fixed value of the nonrandomness parameter. Also, some sets of parame