Modeling the volumetric properties of metals from heat of vaporization

Abstract

We have applied the Song and Mason equation of state [Y. Song, E.A. Mason, Phys. Rev. A 42 (1990) 4743–4748] with a simple modification for alkali metals, alkaline earth metals, aluminum, bismuth, lead, copper and mercury. The present equation of state consists of four temperature dependent parameters. These parameters have been calculated as function of reduced temperature with the use of the law of corresponding states based on latent heat of vaporization and the liquid density at the normal boiling point. The predicted densities were compared with those obtained from the experiment. From 396 data points examined for the aforementioned metals, the total average absolute deviation was found to be 0.72%. Moreover, we indicate that the Zeno line regularity can well be predicted by the proposed model for metals.