A New Similarity between the Critical and Zeno-line Parameters
DOI:
https://doi.org/10.15407/ujpe56.8.838Keywords:
-Abstract
We set new regularities between the critical and Zeno-line parameters. The most important one has the form Tc/TB + ρc/ρB = S(β), where Tc and ρc are the critical temperature and density. The parameters TB and ρB determine the position of the straight line along
which the compressibility factor is equal to 1 on the density-temperature plane. The quantity S(β) is weekly dependent on the critical exponent β: S(β) = 0.64 for the classical value β = 0.5 and 0.67 for β = 1/3. We show that this similarity faithfully describes both the numerical simulation data and experimental data for a wide class of real materials.
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