E cell is 0

[Gabrielle Arreglo 3F]

When is the standard reduction potential 0?

[Brandon Ignacio 2J]

H2 is the standard for standard reduction potentials, so H2 would have a reduction potential of 0.

[505968276]

Hi, I'm pretty sure the standard reduction potential of H2 is zero. I'm not sure if this is the only one equal to zero and it acts a baseline or if there are other things that also have a standard reduction potential of zero.

[Maegan Abutin 2C]

Hi. The standard reduction potential is 0 in a few cases like the standard hydrogen electrode, equilibrium reactions, and in redox reactions where the half-reactions have the same standard reduction potential. When the standard reduction potential is 0, it indicates equilibrium under standard conditions as well as the absence of a driving force for the reaction to proceed.

[006033476]

the reduction potential of hydrogen ions (H⁺/H₂) is often defined as 0 volts at standard conditions (25°C, 1 atm pressure, and 1 M concentration for solutions)

[Carrie Hester 2H]

The standard reduction potential is measured against the standard hydrogen electrode (SHE), which is assigned a potential of 0 volts. Therefore, any half-reaction whose standard reduction potential is exactly 0 volts means that it has the same tendency to gain electrons as hydrogen ions under standard conditions. In other words, it indicates that the half-reaction is at equilibrium with the standard hydrogen electrode.