CALORIMETRY OF ELECTRODE-REACTION UNDER LINEAR SWEEP-CURRENT POLARIZATION

The mathematical-physical equation concerning the process of calorimet ry of electrode reactions was deduced, and the corresponding solutions were obtained respectively for the period of the electrochemical pola rization and that of the natural cooling. The calorimetry of the anodi c oxidation of ferrocyanide to ferricyanide under linear sweep-current polarization was carried out, the obtained apparent enthalpy change o f the electrode reaction agreed well with that obtained by the calorim etry with constant currents. The developed calorimetry with linear swe ep-current and the data processing method are applicable for quick det ermination of apparent enthalpy changes of electrode reactions.