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Electro Isoper Calor for D2O Elec2.pdf (274 kB)

Electrochemical Isoperibolic Calorimetry for D2O Electrolysis

preprint
submitted on 08.11.2019 and posted on 17.11.2019 by Melvin Miles
Equations developed for isoperibolic electrochemical calorimetry were tested for the electrolysis of D2O in an open calorimetric cell. The derivatives of these equations gave correct values within the experimental error range for the important rate of change of the cell temperature with time (dT/dt). In addition, these calorimetric equations were also tested directly in determining the enthalpy change (ΔH) for the D2O electrolysis reaction. The mean experimental value at 298.15 K was ΔH = 294.4 ± 0.3 kJ/mole. This compares favorably (within 0.10%) with the literature value of ΔH = 294.600 kJ/mole. The accuracy of these ΔH measurements could be even further improved by more accurate cell voltage and cell temperature measurement.

Funding

Private Individual Funding

History

Email Address of Submitting Author

mhmiles1937@gmail.com

Institution

Dixie State University

Country

United States

ORCID For Submitting Author

0000-0002-3510-3363

Declaration of Conflict of Interest

No Conflict of Interest

Version Notes

No Conflict Of Interests

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