| Autor: |
Stepanov, Victor P., Kulik, Nina P. |
| Zdroj: |
Ionics; Sep2018, Vol. 24 Issue 9, p2851-2856, 6p |
| Abstrakt: |
An electrochemical method was used to study the Galvani potential between two coexisting equilibrium phases of molten AgI + LiCl and AgBr + LiCl systems. The method measures the electromotive force (emf) of a cell with two silver electrodes: Ag | x′ AgI (or AgBr) + (1 − x′) LiCl | x″ AgI (or AgBr) + (1 − x″) LiCl | Ag. The measurement was performed beginning with the melting point of the mixtures until reaching the temperature of full mixing, Tc, to establish the Galvani potential magnitude and its temperature dependence near the critical point of mixing. It is shown that in the temperature range of 200 K below the critical mixing point, the temperature dependence of the Galvani potential for both systems is described by a universal equation, ∆E ≈ τn, where τ = (Tc − T)/Tc, with the critical exponent n = 1.228. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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