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:

    “Most days I feel like an acrobat high above a crowd out of which my own parents, my in-laws, potential employers, phantoms of “other women who do it” and a thousand faceless eyes stare up.”
    —Anonymous Mother. Ourselves and Our Children, by Boston Women’s Health Book Collective, ch. 2 (1978)

    “There is a difference between a book of two hundred pages from the very beginning, and a book of two hundred pages which is the result of an original eight hundred pages. The six hundred are there. Only you don’t see them.”
    —Elie Wiesel (b. 1928)

    “In America all too few blows are struck into flesh. We kill the spirit here, we are experts at that. We use psychic bullets and kill each other cell by cell.”
    —Norman Mailer (b. 1923)

    “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)