Combustion
- A chemical process in which a substance reacts with oxygen to give off heat is called combustion.
- The substance that undergoes combustion is said to be combustible. It is also called fuel. The fuel may be solid, liquid or gas.
- Sometimes, light is also given off during combustion, either as a flame or
as a glow.
- Fuels such as Liquid petroleum gas, compressed natural gas, petrol, diesel, coal etc undergo combustion to give off heat and light.
CLASS 8 CHAPTER 6 -Combustion and flame