What are different modes of combistion …

There are three types of combustion which are as follows-

1. Spontaneous
2. Rapid
3. Explosive

Spontaneous combustion

It is combustion that occurs at room temperature on its own. It is shown by substances that have an ignition temperature less than room temperature. For example: Burning of yellow phosphorous. In summers, Yellow phosphorous catches fire itself even at room temperature.

Rapid Combustion

It occurs rapidly, evolving a lot of heat and light in a short period of time. For example: LPG( Liquified Petroleum Gas), Kerosene oil, Coal etc. Example: Bring a burning matchstick or a gas lighter near a gas stove in the kitchen. Turn on the knob of the gas stove. We find that the gas burns rapidly and produces heat and light.

Explosive Combustion

It is the combustion that occurs extremely fast with release of heat and light and also loud sound. For example: Crackers.