in this work, we consider each normal alkane as a hypothetical mixtureof methyland methylene groups, in which the interaction potential of each pair is assumed to be the average effective pair potential. then, the lir equation of state (eos) is extended for such a hypothetical mixture. also, three basic compounds, namely, propane, n-butane and cyclohexane, are used to obtain the contribution of...

in this paper the density and temperature dependencies of surface tension are investigated. using the lennard-jones (12,6), as an effective pair interaction potential, a linear expression is derived for isotherms of g /r2  versus r2 for some normal and chlorofluorocarbons (cfcs) fluids, where  is surface tension and r = 1/v is molar density. the linearity behavior of the derived equation is wel...

The understanding of the intermolecular pair potential is important for determining the physical andchemical properties of the matter. The new data for noble gasses was calculated with Soft-CoreDouble Yukawa Potential (SCDY). We studied the effect of the Soft- Core potential on the phasebehavior with Hartree-Fock-Dispersion (HFD) Potential. This model had a steep repulsionexponential term and d...

computer simulation techniques are employed to obtain binding energies of 2,3 and 4 vacancy clusters in a -iron using the finnis sinclair many body potential. the results are compared with earlier pair potential calculations. the many body potential is found to be quite successful in simulating vacancy clusters

Computer simulation techniques are employed to obtain binding energies of 2,3 and 4 vacancy clusters in a -iron using the Finnis Sinclair many body potential. The results are compared with earlier pair potential calculations. The many body potential is found to be quite successful in simulating vacancy clusters

Abstract Electron-positron pair production in asymmetric Sauter potential well is studied, where the has been built as width of right edge fixed but left side changeable at different values. We study momentum spectrum, location distribution and total numbers this case compare them with symmetric case. The relationship between created electron energy, level energy bound states photon used to stu...