A Generalized Technique on the Estimation of Entropy of Mixing of Liquid K - Pb Alloy

Author(s)	Dr. Kalipada Adhikari, Mr. Soumendu Sengupta
Country	India
Abstract	Here the authors have proposed an alternative mechanical theory for the computation of entropy of mixing for structurally inhomogeneous binary liquid alloys consisting of alkali metals and group-IV elements and this theoretical model is successfully applied to liquid K-Pb alloy. This type of alloys demonstrates chemical short range ordering (CSRO) and also a compound forming tendency is also displayed by the alloys in liquid state. Here the binary alloy has been presumed as a system consisting of charged hard spheres where partial charge transfer occurs depending upon the difference of electronegativities between the two constituent atoms. The model is generalized as it has been framed on the basis of existence of hard spheres with arbitrary size and charges. Here this model is applied for the calculation of entropy of mixing of liquid K-Pb alloy. The theoretical results match satisfactorily with the experimental results.
Keywords	Partial charge transfer; Hard-sphere model; stoichiometric composition; Zintl ions.
Published In	Volume 7, Issue 5, September-October 2025
Published On	2025-09-05
DOI	https://doi.org/10.36948/ijfmr.2025.v07i05.55200

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