GLOBAL CORRESPONDING STATES REPRESENTATION OF THE INTERFACIAL-TENSIONAND CAPILLARY CONSTANT FOR THE BINARY-MIXTURES ARGON PLUS KRYPTON, METHANE PLUS KRYPTON, AND KRYPTON PLUS ETHANE
Cd. Holcomb et Ja. Zollweg, GLOBAL CORRESPONDING STATES REPRESENTATION OF THE INTERFACIAL-TENSIONAND CAPILLARY CONSTANT FOR THE BINARY-MIXTURES ARGON PLUS KRYPTON, METHANE PLUS KRYPTON, AND KRYPTON PLUS ETHANE, Journal of physical chemistry, 97(18), 1993, pp. 4797-4805
Corresponding states theories for surface tension and capillary consta
nt have been evaluated using constant liquid mole fraction and constan
t ''fugacity fraction'' reference fluids for three binary systems. Exp
erimental vapor-liquid equilibria, capillary constant, and surface ten
sion data for argon + krypton, methane + krypton, and krypton + ethane
systems were measured from 125 K to the critical line. These results
form a database for phase behavior of varying complexity between simpl
e compounds. The database has been used to compare the ''fugacity frac
tion'' corresponding states theory for capillary constant and surface
tension with the traditional corresponding states theory which uses as
a reference fluid a liquid with constant mole fraction. The database
was also used to test the Moldover and Rainwater prediction for the su
rface tension coefficient in the fugacity fraction corresponding state
s theory.