Question

what is the difference between combustion and fire

Answer 1

Fire is the visible effect of the process of combustion – a special type of chemical reaction. ... Combustion is when fuel reacts with oxygen to release heat energy. Combustion can be slow or fast depending on the amount of oxygen available. Combustion that results in a flame is very fast and is called burning.

Answer 2

Combustion is a chemical process in which substance reacts with oxygen to give off heat. Fire is the visible effect of combustion. Light and heat are given off by oxidation of hydrogen and carbon.