Liquid–(solid + liquid) transitions are studied in (CH3)CCl3 + CCl4 by using the Landau phenomelogical model. The Gibbs energy is expanded in terms of the orientational disorder (OD) parameters for the transitions of the liquid–(rhombohedral + liquid) and liquid–(face-centered cubic + liquid) in a two component system of (CH3)CCl3 + CCl4. From the Gibbs energy, the phase line equations are derived for the transitions studied and they are fitted to the observed T–X phase diagram of (CH3)CCl3 + CCl4 for the concentration (X) CCl4. Temperature and concentration dependences of the OD parameters (Ψ and η) and the inverse susceptibility (χψ-1\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\chi_{\psi }^{ - 1}$$\end{document} and χη-1\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\chi_{\eta }^{ - 1}$$\end{document}) for the two transitions of interest, are predicted by using the melting curves of (CH3)CCl3 + CCl4 on the basis of the Landau phenomenological model. Our predictions, which can be compared with the experimental data, indicate that the first order transition of the liquid–(solid + liquid), in particular, for (CH3)CCl3 + CCl4 can be described satisfactorily by the Landau mean field model.

中文翻译：

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(CH3)CCl3 + CCl4 双组分体系中的液体-（固体 + 液体）跃迁

使用 Landau 现象学模型研究 (CH3)CCl3 + CCl4 中的液体-（固体 + 液体）转变。Gibbs 能量根据 (CH3)CCl3 + CCl4 的双组分系统中液体 -（菱形 + 液体）和液体 -（面心立方 + 液体）转变的取向无序 (OD) 参数进行扩展. 从 Gibbs 能量中，推导出所研究的转变的相线方程，并将它们拟合到 (CH3)CCl3 + CCl4 浓度 (X) CCl4 观察到的 T-X 相图。OD 参数（Ψ 和 η）和逆磁化率的温度和浓度依赖性（χψ-1\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \ usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\chi_{\psi }^{ - 1}$$\end{document} 和χη-1\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\ oddsidemargin}{-69pt} \begin{document}$$\chi_{\eta }^{ - 1}$$\end{document}) 用于两个感兴趣的转变，通过使用 (CH3) 的熔解曲线预测CCl3 + CCl4 基于 Landau 现象学模型。我们的预测，