how does painting prevent rusting of iron
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Answer:
Coatings can slow the rate of diffusion of water and oxygen from the environment to the metal surface. This slows the corrosion process. The paint film can slow the rate of diffusion of corrosion products from the metal surface through the paint film. This also slows the corrosion process
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Answer:
Rusting happens when iron come in contact with water and oxygen.
Painting prevents the contact of iron object with water and oxygen , hence preventing rusting.
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