 |
|
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| • HOME • ABOUT • CATEGORIES • USE OF TEXT AND IMAGES • NEWSLETTER   
|
electrode potential
A measure of the tendency of a reaction at an electrode. An electrode of an element (M) placed in a solution of its ions (M+) constitutes a half-cell. In general a potential difference exists between the electrode and the solution, caused by reactions of the type M
M+ + e. In practice
it cannot be measured absolutely and standard electrode potentials
are defined with reference to a hydrogen electrode under
specified conditions of concentration, temperature, and pressure. Such reactions
are oxidations, and so the term oxidation
potential is often used. See also electrochemical
series. Related category
• PHYSICAL CHEMISTRYAlso on this site:
Encyclopedia of Alternative Energy & Sustainable Living
Encyclopedia of History