Types of combustion
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Types of combustion
Coal and Petroleum of Class 8
ABOUT TYPES OF COMBUSTION
INCOMPLETE COMBUSTION:
Fuel when burning is a limited supply of air (oxygen), tends to form carbon monoxide and the combustion is referred as incomplete combustion
Fuel + Air (O
2
)
Carbon monoxide
COMPLETE COMBUSTION:
Fuel when burning is a excess supply of air (oxygen), tends to form carbon dioxide and the combustion is referred as complete combustion
Fuel + Air (O
2
)
Carbon dioxide
RAPID COMBUSTION:
Combustion in which gas burns rapidly and produces light and heat is known as rapid combustion. Example: burning of gas stove in kitchen
SLOW COMBUSTION:
Combustion which takes place slowly is referred as slow combustion. For example burning of coal in chimney.
SPONTANEOUS COMBUSTION:
The type of combustion in which a material is suddenly bursts in the flames without application of any apparent is called spontaneous combustion. e.g. spontaneous combustion of coal dust
EXPLOSION:
Combustion in which a sudden reaction takes place with the evolution of heat, light and sound is known as explosion. Example: ignition of fire crackers.
HOW DO WE CONTROL FIRE?
In case of fire accident, fire- fighters rush to the accident site with a tanker full of water, a pumping device and other fire-fighting equipment like axe, rope and ladders.
- Firstly spray burning material with water. This helps in lowering the temperature of the burning materials
- Putting off flames by cutting off the supply of oxygen to the flames. This function is also performed by soda-acid fire extinguisher or by putting sand and soil over the burning materials.
-
Demolition of neighbouring huts, houses or stock of fuel to save spreading of fire by cutting off the future supply of fuel. To score More in your class 8 refer
NCERT solutions for class 8
.
