Question

Give an equation for an endothermic reaction when steam and non-metal are involved.

Answer 1

Endothermic reaction:

• Endothermic reactions are chemical reactions in which the reactants absorb heat energy from the surroundings to form products.
• A constant supply of energy in the form of heat keeps the endothermic reaction going.

$\underset{\mathrm{Iron}}{2\mathrm{Fe}\left(\mathrm{s}\right)}+\underset{\mathrm{Water}}{3{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)}\to \underset{\mathrm{Ferric}\mathrm{oxide}}{{\mathrm{Fe}}_2{\mathrm{O}}_3\left(\mathrm{s}\right)}+\underset{\mathrm{Hydorgen}\mathrm{gas}}{3{\mathrm{H}}_2\left(\mathrm{g}\right)}$

As they are electronegative no changes are seen as the non-metals do not react with steam and are not able to break the bond between Hydrogen and Oxygen in water.