饱和态金属熔体热力学性质的计算

CALCULATION OF THE THERMODYNAMIC PROPERTIES OF MECTING METALLIC SUBSTACES AT SATURATED CONDITIONS

本文应用聚集硬球引力场模型状态方程和饱和液态状态方程分别计算了五种碱金属熔体的饱和气体和饱和液密度。另外，还基于Clapeyron方程应用Rankine蒸气压方程与状态方程计算了金属熔体的气化热．上述计算结果都非常满意。

On the basis of the theory of molecular aggregation and the model for hard-spherical molecules and weak molecular attraction the equation of state for molecular aggregation is derived by statistical thermodynamic method. Then, the densities of saturated vapor of 5melting metallic substances are calculated by using the above equation of state, giving quitesatisfactory results. And the latent heats of vaporization of the same substances are also determined by using the Clapeyron equation and the above equation of state. The obtained results are in good agreement with the experimental data. On addition, in this paper amodified equation of state for saturated liquids is proposed. It relates the reduced density ofsaturated liquids to the reduced temperature and configuration factor. The saturated liquiddensities of the above substances are calculated and compared with experimental data, givingan average absolute deviation of only 1.58%.