This article needs additional citations for verification. Please help improve this articlebyadding citations to reliable sources. Unsourced material may be challenged and removed.
Find sources: "Electrochemical equivalent" – news · newspapers · books · scholar · JSTOR (October 2023) (Learn how and when to remove this message) |
Inchemistry, the electrochemical equivalent (EqorZ) of a chemical element is the mass of that element (ingrams) transported by a specific quantity of electricity, usually expressed in grams per coulombofelectric charge.[1] The electrochemical equivalent of an element is measured with a voltameter.
The electrochemical equivalent of a substance is the mass of the substance deposited to one of the electrodes when a current of 1 ampere is passed for 1 second, i.e. a quantity of electricity of one coulomb is passed.
The formula for finding electrochemical equivalent is as follows:
where is the mass of substance and
is the charge passed. Since
, where
is the current applied and
is time, we also have
Element | Electrochemical equivalent |
---|---|
Silver (Ag) | 1.118×10^(-6)
0.000118gm/c |
Copper (Cu) | 3.295×10^(-7) |
Gold (Au) | 6.812×10^(-7) |
Iron (Fe) | 2.894×10^(-7) |
Zinc (Zn) | 3.389×10^(-7) |
Hydrogen (H2) | 1.044×10^(-7) |
Sodium (Na) | 2.387×10^(-7) |
Potassium (K) | 4.055×10^(-7) |
Oxygen (O2) | 8.28×10^(-8) |
Aluminum (Al) | 9.36×10^(-8) |
![]() | This physical chemistry-related article is a stub. You can help Wikipedia by expanding it. |