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Electrochemistry - Example Papers

Electrochemistry


Electrochemical processes are uniformly based on redox
(reduction/oxidation) reactions. Think of it as the opposite of a battery.
In a battery the chemical process is spontaneous and produces electrical
energy, while in an electrolysis you need to put electrical energy in to
run the chemical process.

An electrolytic cell works on the same principles as any other electrical
device: electrons are stripped away from the anode and transferred to the
cathode. In an electrolytic reaction, the desired substance appears at one
or the other electrode; which electrode depends on whether the substance is
being oxidized or reduced.

For example, in the electrolysis of water hydrogen is being reduced ...

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Some synthetic processes can only be done using electrochemical
methods, and electrochemical methods are used in the large-to-medium-scale
synthesis of organic "fine chemicals" because of the financial, safety and
environmental advantages. Here's a page outlining some current research by
one of my graduate school professors.

I can think of at least three common uses of electrochemistry:

pH meters and other measuring devices

pH meters are electrochemical devices. They measure pH by comparing the
electrical properties of a solution to those of a reference electrode.
Other types of electrochemistry are used in other measurement applications.


Electroplating

If you immerse a metal object in a bath containing the salt of a second
metal, you can uniformly plate on a coating of that metal by running
current through the solution. The object being plated is the cathode; the
anode is some inert substance, like a carbon rod.

"Electroplating" with polymers!

Certain monomers ...

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Electrochemistry. (2005, October 16). Retrieved December 23, 2024, from http://www.essayworld.com/essays/Electrochemistry/34971
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"Electrochemistry." Essayworld.com. October 16, 2005. Accessed December 23, 2024. http://www.essayworld.com/essays/Electrochemistry/34971.
"Electrochemistry." Essayworld.com. October 16, 2005. Accessed December 23, 2024. http://www.essayworld.com/essays/Electrochemistry/34971.
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PAPER DETAILS
Added: 10/16/2005 07:44:38 PM
Category: Science & Nature
Type: Premium Paper
Words: 446
Pages: 2

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