Question

What happen when steam is passed over red hot iron

Answer 1

If steam is passed over red hot iron, it is converted into its magnetic oxide and hydrogen gas. If on the other hand, hydrogen is passed over heated magnetic oxide, it will change back to iron and steam. This reaction can be made to proceed in both directions, so it is called reversible reaction.

Answer 2

When steam is passed over the red hot iron the red hot iron reduces the steam to hydrogen gas. A mixture of iron oxide is also formed . ... This mixture is the magnetite of the Iron. Therefore when steam is passed over heated iron the steam is reduced to hydrogen gas whereas the magnetite of the iron is formed.