Question

What do you understand by the term exothermic reaction.

Answer 1

• The chemical reaction that release heat energy are called exothermic reaction
• Example$\underset{\mathrm{carbon}}{\underset{}{\mathrm{C}}}\left(\mathrm{g}\right)+\underset{\mathrm{oxygen}}{\underset{}{{\mathrm{O}}_2}}\left(\mathrm{g}\right)\to \underset{\mathrm{carbon}\mathrm{dioxide}}{\underset{}{{\mathrm{CO}}_2}}\left(\mathrm{g}\right)+\mathrm{heat}\mathrm{energy}$