Question

what happens when coal is heated in air ? State the uses of coal.

Answer 1

If coal is heated in the presence of air, then coal burns to produce mainly carbon dioxide gas and no other useful products were obtained. Other products obtained are water , heat and light. It is a gaseous fuel which is obtained by the strong heating of coal in the absence of air during the processing of coal to get the coke.

Uses:

• It is used as a fuel at the thermal power plant to generate electricity.
• It is used as a source of organic chemicals.
• It was used to run steam engines.
• Paper manufacturers use coal to make paper.
• Coal helps to create alumina refineries.
• It can be processed in industry to make coke gas and coal tar.