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| THE LINEAR CONCENTRATION RULES AT CONSTANT PARTIAL MOLAR QUANTITY ■_O——THE EXTENSION OF THE TURKDOGAN'S AND THE ZDANOVSKII'S RULES |
| Wang Zhichang Shanghai Institute of Nuclear Research; Academic Sinica |
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Cite this article:
Wang Zhichang Shanghai Institute of Nuclear Research; Academic Sinica. THE LINEAR CONCENTRATION RULES AT CONSTANT PARTIAL MOLAR QUANTITY ■_O——THE EXTENSION OF THE TURKDOGAN'S AND THE ZDANOVSKII'S RULES. Acta Metall Sin, 1980, 16(2): 195-206.
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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 μ_0. 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 Ψ_0 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 Ψ_0. 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.
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Received: 18 February 1980
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