what type of reaction is the rusting of iron
Rust When impure (cast) iron is in contact with water, oxygen, other strong oxidants, or acids, it rusts. If salt is present, for example in seawater or salt spray, the iron tends to rust more quickly, as a result of electrochemical reactions. Iron metal is relatively unaffected by pure water or by dry oxygen. As with other metals, like aluminium, a tightly adhering oxide coating, a passivation layer, protects the bulk iron from further oxidation. The conversion of the passivating ferrous oxide layer to rust results from the combined action of two agents, usually oxygen and water.
In situ In chemistry, in situ typically means "in the reaction mixture."
Base oil The least refined type which produced by Solvent Refining. It usually consists of conventional petroleum base oils.
Rate equation k is the first order rate constant, which has units of 1/s or sâˆ’1.