Chemical
Properties and Corrosion Module
Outcomes
1. Be able to compare the behavior
of batteries with corrosion in action.
2. Be able to determine, and
explain the determination of the two half reactions
3. Be able to explain the various
corrosion prevention techniques based on Outcomes 1 and 2
Preparation
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Section
4.5 of the text starts with a description of how the potential associated with
the half reactions are calculated. The content on Pg
93 helps link this module to the manufacturing modules.
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The
following YouTube Video is one of the best overviews of Corrosion based on Chemical
Reactions that I have seen. This is a great introduction to this module
with a practical example.
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The
You Tube Video showing the formation
of copper through the reaction of zinc and copper sulfate is a good
introduction to the basic battery/corrosion reaction. This should be followed
by a review of the Cu/Zn
battery. Understanding half
reactions is key to understanding the chemical reactions responsible for
corrosion.
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