ENTHALPY, ENTROPY AND HELMHOLTZ FREE ENERGY OF TRANSITION AND RARE EARTH LIQUID METALS

Recently proposed model potential of Baria and Jani is used to calculate Enthalpy, Entropy and Helmholtz free energy of liquid transition and rare earth metals with the variational approach. The parameter of the potential is determined with the standard zero pressure condition along with well established Sarkar et al screening function for exchange and correlation effect. Here we strongly emphasize that the parameter of the potential is independent of any fitting procedure either with any experimental data or with any theoretical values of any physical properties. The structure factor derived by PercusYevick solution for hard sphere fluids, which is characterized by hard sphere diameter, is used. A good agreement between theoretical investigations and experimental findings has confirmed the ability of the model potential to the liquid d and f -shell metals. In the last two decades, the considerable efforts have been made to the understanding of structure and thermodynamic properties of several liquid noble, transition and rare-earth metals Recently Baria and Jan