What are two conditions which promote corrosion?
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Condition that affects the corrosion or accelerate the rate are:-
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#contact with air
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#contact with air
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Corrosion means a chemical destruction of metals or materials due to chemical reactions with the environment.
There are many factors that cause corrosion. A few are - oxygen in air, temperature, the presence of chemical salts, pollution, humidity of the environment etc.
1. Pollutants like acid rain promote corrosion to a huge extent. Also, the presence of other pollutants like chlorides, carbon dioxide etc. form a film on the metal by dissolving in atmospheric moisture.
2. Oxygen - Corrosion occurs in an oxygen-deficient environment and also in one where oxygen is present in excess, with the extent of corrosion being more in the latter situation than the former.
There are many factors that cause corrosion. A few are - oxygen in air, temperature, the presence of chemical salts, pollution, humidity of the environment etc.
1. Pollutants like acid rain promote corrosion to a huge extent. Also, the presence of other pollutants like chlorides, carbon dioxide etc. form a film on the metal by dissolving in atmospheric moisture.
2. Oxygen - Corrosion occurs in an oxygen-deficient environment and also in one where oxygen is present in excess, with the extent of corrosion being more in the latter situation than the former.
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