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Electrochemistry

Published on Dec 11, 2015

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PRESENTATION OUTLINE

ELECTROCHEMISTRY

What is it?

the branch of chemistry that deals with the relations between electrical and chemical phenomena.

Electrochemistry in Real Life:

Batteries & Voltaic cells

HOW BATTERIES WORK

The cathode and anode (the +and- sides at either end of a battery) are hooked up to an electrical circuit. The chemical reactions in the battery causes a build up of electrons at the anode.

Oxidation and reduction reactions cannot be carried out separately. They have to appear together in a chemical reaction. Thus oxidation and reduction reactions are often called redox reactions.

The trick in a battery is to separate the oxidation from the reduction, so the electrons have to go on a trip through the external circuit, where we can make use of them.

fumes of sulphuric acid which is a part of electrolyte and actually responsible for corrosion keeps arising out of vents of flooded lead acid batteries when battery is charging or hot.