electrochemistry

Electrochemistry is a branch of chemistry that studies chemical reactions which take place in a solution at the interface of an electron conductor? (a metal or a semiconductor) and an ionic conductor? (the electrolyte), and which involve electron transfer between the electrode and the electrolyte or species in solution.

If a chemical reaction is driven by an external applied voltage, as in electrolysis, or if a voltage is created by a chemical reaction as in a battery, it is an electrochemical reaction. In contrast, chemical reactions where electrons are transferred between molecules are called oxidation? / reduction? (redox) reactions. In general, electrochemistry deals with situations where oxidation? and reduction? reactions are separated in space or time, connected by an external electric circuit to understand each process.

See Also

Electricity
Electrolysis
Faraday


Created by Dale Pond. Last Modification: Sunday 13 of March, 2011 10:02:21 MDT by Dale Pond. (Version 2)
The original document is available at http://pondscienceinstitute.on-rev.com/svpwiki/tiki-index.php?page=electrochemistry