Theory of the Dielectric Constant of a Nonpolar Fluid

摘要

Taking the dipole interactions of molecules into consideration, a statistical theory of the dielectric constant of a nonpolar fluid is presented. It is assumed that the molecules have a constant polarizability and no higherhyphen;order multipole moments. The deviation of the Clausiusmdash;Mossotti formula from experiments is expressed in a density series. It is found that coefficientBin the generalized Clausiusmdash;Mossotti Eq. (5.1) has a relation to coefficientA. Bis determined explicitly as a function of temperature for isotropic spherical molecules with hardhyphen;sphere potentials, squarehyphen;well potentials, and Lennardhyphen;Jones potentials. The results are compared with the data of Johnston, Oudemans, and Cole on inert gases.