利用标准生成自由能判定化合物的稳定性

Stability of A Determination of Intermediate Compound Standard Gibbs Free Energy of Formation

摘要: 本文从热力学原理出发,推导出:二元系中化合物的标准生成自由能符合拟抛物线规则;推广到三元系中则应符合抛物面规则;并且利用上述规则判定含稀土体系中化合物的稳定性。

Abstract: Based on principles of thermodynamics, it is derived that: in a binary system, a quasi-parabola regulation must be obeyed by the standard Gibbs free energy of formation of compound. Extended to ternary systems, a quasi-paraboloid regulation also is done. The stabilities of intermediate compound in binary systems containing a rare earth element are criticized.