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&偏克分子数量■0恒定条件下线性浓度规则——Turkdogan和Здановский规则的推广
THE LINEAR CONCENTRATION RULES AT CONSTANT PARTIAL MOLAR QUANTITY ■_O——THE EXTENSION OF THE TURKDOGAN’S AND THE ZDANOVSKII’S RULES
【摘要】 Turkdogan规则是铁合金熔体中碳的溶解度线性浓度规则;Здановский规则是水活度恒定条件下混合电解质水溶液的线性浓度规则.它们都是化学势μ0为恒定条件下的线性浓度规则. 本文把这两个规则分别用克分子分数、重量克分子数和重量百分数这三种浓度单位来表示,并推广应用于各类n元(n≥3)溶液的各种热力学性质ψ,成为偏克分子数量ψ0恒定条件下线性浓度规则,同时指出Здановский型规则是Turkdogan型规则推广至ψ0恒定条件下的整个浓度范围内时的特例. 上述结论用液态和固态合金溶液、熔盐、电解质溶液、聚合物溶液的Gibbs自由能、热焓、热容和体积等性质的文献数据作了验证.
【Abstract】 The Turkdogan’s rule is a linear concentration rule of the solubility ofcarbon in the molten Fe-alloys, while he Zdanovskii’s rule is that of the mixed elec-trolytes at isopiestic condition. Both are linear concentration rules at onstantchemical potential μ0. In this paper, these two rules are expressed by three different concentration units(mole raction, molality and weight percent) and are extended to the general linearconcentration rules at constant partial molar uantity Ψ0 applicable to all thermo-dynamic properties Ψ of any n-component (n≥3) solutions. It is pointed out thatthe Zdanovskii-type’s rule is a special example of the Turkdogan’s rule extendedto whole region of concentration at onstant Ψ0. The above conclusions are verified by examining published data dealing withsuch properties as Gibbs free nergy, enthalpy, heat capacity or volume for solu-tions of liquid and solid alloys, molten salts, electrolytes or olymers.
- 【文献出处】 金属学报 ,Acta Metallrugica Sinica , 编辑部邮箱 ,1980年02期
- 【被引频次】6
- 【下载频次】31