Question

what is SHE or standard hydrogen electrode ​

Answer 1

Answer:

it is an refferece electrode whose own electrode potential is take 0 .

if it really help u the plz FOLLOW me

Answer 2

Answer:

Explanation:

The potential of individual half cell cannot be measured

We can measure only the difference between two half cell potentials that gives the emf of the cell .

If we choose the potential of one electrode ( half - cell ) then that of the other can be determined wrt this .

According to convention , a half cell called Standard Hydrogen Electrode represented by Pt ( s ) | H₂ ( g ) | H⁺ ( aq ) is assigned a zero potential at all temperatures .

H⁺( aq ) + e⁻ ⇒ 1/2 H₂ ( g )

The SHE consists of a platinum electrode coated with platinum black .

The electrode is dipped in an acidic solution and pure hydrogen gas is bubbled through it .

Pressure of Hydrogen gas is 1 bar and the concentration of hydrogen ion in the solution is one molar .