11. Why do electrode potentials change at high temperatures? 12. Electrode potential is measured with reference electrodes.13. Supporting electrolytes are widely used in electrochemical measurements when control of electrode potentials is required. 14. The electrode potential of lead shows that it is only slightly easier to oxidize than hydrogen. 15. Two years later, the seminal article " Electrocapillary Phenomena and Electrode Potentials " was published. 16. The sulfate radical formed in situ has a standard electrode potential of 2.7 V. 17. As the standard electrode potential is more negative the aqua ion is more difficult to reduce. 18. It follows that electrode potential is proportional to pH when pH is defined in terms of activity. 19. The absolute electrode potential is then defined as the Gibbs free energy for the absolute electrode process. 20. :Electrode potentials measure the equilibrium point of the chemical reaction that takes place at the electrode.
