Isentropic calculations for normal liquid 􀫜􀡴􀢋 using the lowest order constrained variational method

	Isentropic calculations for normal liquid 􀫜􀡴􀢋 using the lowest order constrained variational method
Iranian Journal of Science
مقاله 1، دوره 36، شماره 3، شهریور 2012، صفحه 225-230 اصل مقاله (459.68 K)
نوع مقاله: Regular Paper
شناسه دیجیتال (DOI): 10.22099/ijsts.2012.2071
نویسندگان
G.H. Bordbar^* ؛ S. Hosseini
Department of Physics, Shiraz University, Shiraz 71454, Iran
چکیده
In this paper the lowest order constrained variational (LOCV) method has been used for calculation of liquid 􀬷􀜪􀝁 along different isentropic paths employing the Aziz potential. Some thermodynamic properties such as energy per particle, pressure, temperature, chemical potential, velocity of sound, adiabatic index and compressibility for normal liquid 􀬷􀜪􀝁 have been calculated. Our results indicate that the sound velocity is always less than the velocity of light in vacuum (c) showing that all calculated equations of state obey the causality condition. Finally, our calculations show that the adiabatic index is not constant and its value depends on both density and entropy of the system.
کلیدواژه‌ها
Liquid 􀬷􀜪􀝁؛ isentropic process؛ velocity of sound؛ adiabatic index؛ Compressibility

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