Electrochemistry Project
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PRESENTATION OUTLINE
WHAT IS ELECTROCHEMISTRY?
- It is the branch of chemistry that deals with the relations between electrical and chemical phenomena.
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EVERYDAY LIFE USE
- Turning chemical energy into electrical energy.
- Liquid acid battery holding electricity.
- A generator converts chemical energy into mechanical energy then into electrical energy.
THE BASIC BATTERY SETUP
- Consists of a metal positive cap.
- Carbon rod (positive electrode)
- Manganese (IV) oxide
- Moist paste of ammonium chloride electrolyte
- Zinc case (negative electrode)
- Metal negative bottom
OXIDATION REDUCTION
- A chemical reaction in which an atom or ion loses electrons to another atom or ion.
- Negative electrons packed together move to the side with fewer electrons.
HOW CORROSION AFFECTS BATTERIES
- Corrosion of the electrodes or lead plates in an acid battery would cause bad connection with the liquid acid.
- This would make the battery conduct less electricity because the corrosion creates resistance when electrons are transfer
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CORROSION AFFECTING OTHER METALS
- Corrosion can also affect other metals.
- It damages metals while in contact with the outside environment.
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ELECTROLYSIS
- It is a chemical decomposition produced by passing an electric current through a liquid or solution containing ions.
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USED IN EVERYDAY LIFE
- The production of some difficult metals like aluminum, magnesium, and copper involve electrolysis.
- Electrolysis of water is used in the production of hydrogen for fuel, or the generation of electricity
- Electrolysis can also happen to your cars engine, but this is destructive because metals will become magnetic and conduct electricity
Photo by Ole-Henrik
