title: Equations of state for fluids: empirical temperature dependence of the second virial coefficients.
abstract: In this paper, an empirical dependence of the second virial coefficients is derived from equations of state. The second virial coefficient B2 is found to be a linear function of 1/T1+beta, where T is the temperature and beta is a constant and has different value for different substances. Excellent experimental supports to this relationship are reported for nonpolar fluids, polar fluids, heavy globular molecule fluids, and quantum fluid He-4.
authors.affiliation: Department of Physics, Qufu Normal University, Qufu 273165, People's Republic of China. jianxiangtian@yahoo.com.cn
authors.forename: Jianxiang
authors.initials: J
authors.lastname: Tian
authors.forename: Yuanxing
authors.initials: Y
authors.lastname: Gui