Electrode Potential - Potential Difference of A Cell Assembled of Two Electrodes

Potential Difference of A Cell Assembled of Two Electrodes

See also: Galvanic cell#Cell voltage, Electrochemical cell#Cell potential, and Electrolytic cell#Anode and cathode definitions depend on charge and discharge

Potential of a cell assembled of two electrodes can be determined from the two individual electrode potentials using:

ΔVcell = Ered,cathode - Ered,anode

or, equivalently,

ΔVcell = Ered,cathode + Eoxy,anode

This follows from the IUPAC definition of the electric potential difference of a galvanic cell, according to which the electric potential difference of a cell is the difference of the potentials of the electrodes on the right and the left of the galvanic cell. When ΔVcell is positive, then positive electrical charge flows through the cell from the left electrode (anode) to the right electrode (cathode).

Read more about this topic:  Electrode Potential

Famous quotes containing the words potential, difference, cell and/or assembled:

    “The traditional American husband and father had the responsibilities—and the privileges—of playing the role of primary provider. Sharing that role is not easy. To yield exclusive access to the role is to surrender some of the potential for fulfilling the hero fantasy—a fantasy that appeals to us all. The loss is far from trivial.”
    —Faye J. Crosby (20th century)

    ““Great difference between me and white man.””
    —Henry David Thoreau (1817–1862)

    “There’s not one part of his physical being that’s like that of human beings. From his warped brain down to the tiniest argumentative cell of his huge carcass, he’s unearthly.”
    —Willis Cooper. Rowland V. Lee. Wolf von Frankenstein (Basil Rathbone)

    “The House of Commons starts its proceedings with a prayer. The chaplain looks at the assembled members with their varied intelligence and then prays for the country.”
    —Lord Denning (b. 1899)