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从化学热力学角度分析液体过热现象，据热力学稳定准则δＦＴ．ｖ≥０得二元液体混合物的稳定条件与稳定极限．将Ｐ－Ｒ状态方程应用到稳定性极限关系式，导出过热极限与临界温度的关系，并修正该状态方程中ｋ表达式中的常数．最后，提出一种全新的计算二元液体混合物的临界温度的方法．根据修正后的ｋ表达式，利用临界温度与过热极限的关系，以实验测定的二元液体混合物的过热极限为基础，对８种二元液体混合物的临界温度进行预测，所得结果与文献值比较，发现与大多数体系相符．
From the perspective of chemical thermodynamics analysis of liquid overheating, according to thermodynamic stability criteria δFT. v ≥ 0 binary liquid mixture of stability conditions and stability limits. The P-R equation of state is applied to the stability limit relationship, the relationship between the overheat limit and the critical temperature is derived, and the constants in the k-expression in the equation of state are corrected. Finally, a new method of calculating the critical temperature of a binary liquid mixture is proposed. Based on the modified k expression, the critical temperature of the eight binary liquid mixtures is predicted based on the experimentally determined overheat limit of the binary liquid mixture by using the relationship between the critical temperature and the overheat limit. The obtained results are compared with the literature values , Found to be consistent with most systems.