Rust

[Nikhil Pillai 2K]

How can we apply the principles of electrochem to rust? It mentions this in the syllabus but lecture only talked a little bit about corrosion?

[Aditya Narashim 1K]

The water and the oxygen oxidize the iron.

[Jasmin Gonzalez]

To apply principles of electrochemical principles to rust we have to consider that rusting typically involves the formation of an electrochemical cell on the metal surface and that the cell consists of anodic and cathodic regions where oxidation and reduction reactions take place. So the overall rusting process can be represented by the combination of the anodic and cathodic reactions. Additionally with the presence of an electrolyte, like water containing dissolved salts or acids, it can facilitate the flow of electrons between the anodic and cathodic regions, promoting rust formation

[Kelli Chong [1B]]

Within the corrosive process, moisture in the form of water, serves as a galvanic cell in which the water oxidizes the iron.