Electrochemistry | Wikipedia audio article
Channel: wikipedia tts
Date: 08/12/2018

This is an audio version of the Wikipedia Article:
Electrochemistry


00:01:02 1 History
00:01:10 1.1 16th-to-18th-century developments
00:04:09 1.2 19th century
00:07:52 1.3 20th century and recent developments
00:08:52 2 Principles
00:09:01 2.1 Oxidation and reduction
00:12:19 2.2 Balancing redox reactions
00:12:47 2.2.1 Acidic medium
00:14:30 2.2.2 Basic medium
00:15:54 2.2.3 Neutral medium
00:17:03 3 Electrochemical cells
00:21:26 4 Standard electrode potential
00:23:54 5 Spontaneity of redox reaction
00:24:54 6 Cell emf dependency on changes in concentration
00:25:08 6.1 Nernst equation
00:29:56 6.2 Concentration cells
00:30:08 7 Battery
00:32:59 8 Corrosion
00:33:46 8.1 Iron corrosion
00:38:30 8.2 Corrosion of common metals
00:40:50 8.3 Prevention of corrosion
00:41:10 8.3.1 Coating
00:42:25 8.3.2 Sacrificial anodes
00:44:34 9 Electrolysis
00:45:59 9.1 Electrolysis of molten sodium chloride
00:46:29 9.2 Electrolysis of water
00:46:56 9.3 Electrolysis of aqueous solutions
00:47:58 9.3.1 Electrolysis of a solution of sodium chloride
00:48:28 9.4 Quantitative electrolysis and Faraday's laws
00:49:44 9.4.1 First law
00:51:30 9.4.2 Second law
00:51:56 10 Applications
00:55:23 11 See also
00:55:55 12 References
00:57:24 13 Bibliography
00:58:13 14 External links



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SUMMARY
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Electrochemistry is the branch of physical chemistry that studies the relationship between electricity, as a measurable and quantitative phenomenon, and identifiable chemical change, with either electricity considered an outcome of a particular chemical change or vice versa. These reactions involve electric charges moving between electrodes and an electrolyte (or ionic species in a solution). Thus electrochemistry deals with the interaction between electrical energy and chemical change.
When a chemical reaction is caused by an externally supplied current, as in electrolysis, or if an electric current is produced by a spontaneous chemical reaction as in a battery, it is called an electrochemical reaction. Chemical reactions where electrons are transferred directly between molecules and/or atoms are called oxidation-reduction or (redox) reactions. In general, electrochemistry describes the overall reactions when individual redox reactions are separate but connected by an external electric circuit and an intervening electrolyte.