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:

    “Much of what contrives to create critical moments in parenting stems from a fundamental misunderstanding as to what the child is capable of at any given age. If a parent misjudges a child’s limitations as well as his own abilities, the potential exists for unreasonable expectations, frustration, disappointment and an unrealistic belief that what the child really needs is to be punished.”
    —Lawrence Balter (20th century)

    “The difference between poetry and rhetoric
    is being
    ready to kill
    yourself
    instead of your children.”
    —Audre Lorde (1934–1992)

    “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)

    “According to the historian, they escaped as by a miracle all roving bands of Indians, and reached their homes in safety, with their trophies, for which the General Court paid them fifty pounds. The family of Hannah Dustan all assembled alive once more, except the infant whose brains were dashed out against the apple tree, and there have been many who in later time have lived to say that they have eaten of the fruit of that apple tree.”
    —Henry David Thoreau (1817–1862)