Question

Write all the defination:- [ no spam plz and no copy paste answer]
1.Combustion-
2.Fuel-
3.Ignition temperture-
4.Inflammable substance-
5.Rapid combustion-

Answer 1

$Answer:-$

1.Combustion- A chemical process in which substance reacts with oxygen to give off heat is called combustion.

2.Fuel-The substance that undergoes combustion is said to be combustible. It is also called fuel.

3.Ignition temperture- The lowest temperature at which a substance catches fire is called its ignition temperature.

4.Inflammable substance-The substances which have very low ignition temperature and can easily catch fire with a flame are called inflammable substances .

5.Rapid combustion-The gas burns repidly and produces heat and light combustion is known as rapid combustion.

→Hope this will help you :)

Answer 2

1) Combustion:

• A chemical process in which a substance reacts with oxygen to give off heat and light is called combustion.
• The burning of wood is an example of combustion.

2) Fuel:

• The materials which are burnt to produce heat energy are called as fuels
• Eg: Coal, LPG, Diesel, Petrol etc.

3) Ignition temperature:

• The lowest temperature at which a substance catches fire and undergoes combustion liberating heat and light is called ignition temperature.

4) Inflammable substance:

• Those substances that have very low ignition temperature and easily catches fire and undergoes combustion are termed as inflammable substances.
• Eg: petrol, alcohol, aerosol sprays etc.

5) Rapid combustion:

• The type of combustion reaction that occurs with a great speed producing an enormous heat & light in a short time is known as Rapid combustion.
• Eg: when we bring a matchstick near the gas stove it rapidly catches fire. Similarly, as soon as we strike the matchstick against the match box it rapidly catches fire.