if iron doesnt react with wateruntillthe steam is produced,then how the rusting takes place

Asked by pmchikodi | 29th Aug, 2014, 04:07: PM

Expert Answer:

Dear pmchikodi@gmail.com

Thanks for asking us a question in Ask the Expert section of TopperLearning.com.

Process of rusting is as given below:

For iron to become iron oxide, three things are required: iron, water and oxygen. Iron does not react with water directly. When a drop of water hits an iron object, two things begin to happen almost immediately. First, the water, a good electrolyte, combines with carbon dioxide in the air to form a weak carbonic acid, an even better electrolyte. As the acid is formed and the iron dissolved, some of the water will begin to break down into its component pieces -- hydrogen and oxygen. The free oxygen and dissolved iron bond into iron oxide.

So for rusting steam water is not required at all.



Regards

Topperlearning Team.

Answered by Arvind Diwale | 31st Aug, 2014, 01:02: AM