The liquid-vapor interface of the restricted primitive model of ionic fluids from a density functional approach
نویسندگان
چکیده
We investigate the liquid-vapor interface of the restricted primitive model for an ionic fluid using a density functional approach. The applied theory includes the electrostatic contribution to the free energy functional arising from the bulk energy equation of state and the mean spherical approximation for a restricted primitive model, as well as the associative contribution, due to the formation of pairs of ions. We compare the density profiles and the values of the surface tension with previous theoretical approaches.
منابع مشابه
ar X iv : c on d - m at / 9 71 03 35 v 1 3 0 O ct 1 99 7 The liquid - vapor interface of an ionic fluid
We investigate the liquid-vapor interface of the restricted primitive model (RPM) for an ionic fluid using a density-functional approximation based on correlation functions of the homogeneous fluid as obtained from the mean-spherical approximation (MSA). In the limit of a homogeneous fluid our approach yields the well-known MSA (energy) equation of state. The ionic inter-facial density profiles...
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