Question

10.
(i) Write the reaction of steam with red hot iron.
(ii) Why is this reaction considered a reversible
reaction ?
(iii) How can the reaction proceed continuously ?


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Answer 1

Answer:

i.)When steam is passed over red hot iron Fe2O3 and Hydrogen are produced. Answer: Iron does not react readily with water at ordinary temperature. It reacts with steam when its passed over iron to form ferrous oxide or ferric oxide

ii.)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.

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Answer 2

Explanation:

i) 3Fe + 4H2O ⇋ Fe3O4 + 4H2

ii) This reaction is reversible because if hydrogen formed is not removed, then the iron oxide formed is reduced back to iron.

iii) This reaction is reversible. If the hydrogen formed is not removed the iron oxide formed is reduced back to iron. Thus, the reaction can proceed continuously.

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