Question

What is standard hydrogen electrode significance?

Answer 1

1. Reference electrode: SHE is assigned a standard electrode potential (E°) of 0.00 V at all temperatures.
2. Comparison tool: It allows the comparison of electrode potentials of different half-cells under standard conditions.
3. Determination of electrode potentials: The electrode potential of any electrode can be determined by coupling it with SHE in a galvanic cell and measuring the cell potential.
4. Basis for electrochemical series: Standard electrode potentials of all elements in the electrochemical series are measured relative to SHE.