Determination of the entropy change for electrode reaction and dilute enthalpy of some ions by thermo-eletrochemical technology

Abstract

Based on thermo-electrochemical equation for an electrode reaction, the entropy change of it can be obtained by the thermo - electrochemical technology (TECT). The entropy changes of Fe (CN)₆⁻³/Fe (CN)₆⁻⁴, H⁺/H₂(P⁰), Cu⁺²/Cu and Zn⁺²/Zn electrode reaction systems and the dilute enthalpies of the H⁺, Cu²⁺ and Zn²⁺ ions under the ion concentrations studied have been determined by a specially designed thermo-electrochemical equipment. The enthalpy change and entropy change for the five systems at unlimitedly diluted concentrations agree well with the literature.

Keywords

thermo-electrochemistry / entropy / dilute enthalpy

References

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