Surface tension, shear viscosity and isothermal compressibility of liquid C₆₀ along the liquid-vapour coexistence

Abstract

The correlations between the surface tension, shear viscosity, and isothermal compressibility, are investigated for liquid C₆₀ at extended regions of temperature and pressure. An improved equation of state [EOS] is employed, based on hard-core plus three Yukawa potential [HC3YK] which facilitates the analytically accurate series mean spherical approximation [SMSA] formalism for the free energy. The present equation of state is utilized to obtain analytical expressions for the thermodynamic functions of interest and discuss the validity of their mutual relations along the spinodal curve of C₆₀.

Keywords:

• carbon fullerence C₆₀
• surface tension
• sear viscosity
• isothermal compressibility
• liquid-vapour

Acknowledgements

We are grateful to the Sultan Qaboos University for the research project # IG/Sci/Phys/07/04 and its substantial financial support for completing this work.