CHAPTER 4 COMBUSTION – SCIENCE STD 4 NOTES
Explain the concept of combustion
Combustion is the chemical reaction involves the burning of a substance in the presence of oxygen to produce heat and light.
Material which catch fire and burn easily is called combustible
Examples of combustible materials are Wood
➢ Wood
➢ Cooking gas
➢ Cloth
➢ Charcoal
➢ Petroleum
Enclosed space (closed system) in which combustion takes place, especially in an engine or furnace is called combustion chamber
Different material are combustible but some burn up faster than others Application of combustion (Effects of combustion)
It’s applied in many areas, includes Industries
i. Engine or furnace
i. In large boilers
ii. Incinerators for burning wasters
iii. welding and smelting (extract metal) Domestic
iv. v. Cooking
v. vi. Heating homes
vi. vii. Burning wastes Laboratory
vii. viii. Sterilization
viii. ix. During experiments
CHAPTER 4 COMBUSTION – SCIENCE STD 4 NOTES
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