Abstract
The electromotive force (EMF) of liquid Hg-Na alloys was measured in detail below 15 at.% Na as functions of Na concentration and of temperature. On the basis of observed EMF values, thermodynamic functions of mixing were obtained at 398 K and 448 K. At 2-8 at.% Na anomalous changes were observed in the concentration dependence curve of the excess partial molar entropy, SPi,E (i=Na or Hg), and on that of the partial molar enthalpy of Na, HPNa,E. These anomalies indicate higher-order correlation effects arising from the characteristic changes in the concentration derivatives of n-body (n>or=2) correlation function galpha beta gamma (n). ( delta galpha beta gamma (n)./ delta ci)V,T,cj( not=i), which could be derived explicitly to be the function of the higher-order (n+1)-body correlation function galpha beta gamma (n) (n+1). . /sub /.
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