Question

What happen when water vapour is pass through at red iron?

Answer 1

Iron does not react with water in the ordinate temperature. It reacts only with steam. When steam passed over red hot iron, iron oxide and hydrigen gas are formed.

Answer 2

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 ,it will change back to iron and steam.This reaction can be made to proceed in both reaction,so it is called reversible reaction