2007-03-10 15:38:12 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Steel contains iron in it.
So when left exposed to air , it forms an oxide called iron oxide as it reacts with water vapour and oxygen.
This is a wasteful reaction and the iron oxide so formed breaks easily and this is called 'rust'.
This results in the completely wastage of steel.
the reaction is as follows :-
Fe + x H2O +Oxygen = Fe2O3 (rust)
When it is coated with grease, the steel can no more come in contact with the water vapour and oxygen.
So it is covered with grease.
2007-03-17 06:01:15 · answer #1 · answered by Satya 2 · 1⤊ 0⤋
I would guess that the grease slows the oxidation of the steel. It prevents air from getting in, so the oxygen cannot rust it.
2007-03-10 15:44:02 · answer #2 · answered by (f-_-)f 2 · 0⤊ 0⤋
To prevent rusting by exposure to the atmospheric oxygen.
2007-03-10 15:44:14 · answer #3 · answered by Swamy 7 · 0⤊ 0⤋
so it doesn't rust. The grease protects the steel from moisture.
2007-03-10 15:43:56 · answer #4 · answered by wanna_be_md 3 · 1⤊ 0⤋
To prevent rust
2007-03-10 15:47:01 · answer #5 · answered by starfire 4 · 0⤊ 0⤋
To prevent corrosion
2007-03-18 10:24:52 · answer #6 · answered by Anonymous · 0⤊ 0⤋