Burning of LPG is different from burning of sulphur, even though both involve burning of a combustible substance. How?
Answers
Combustion :-
Fuel or Combustible Substance:Any material that undergoes combustion is called a combustible substance. It is also called as fuel. Some examples of fuels are petrol, diesel, etc. The fuel may be in solid, liquid or gas state. Sometimes, light is also given off during combustion, either as a flame or as a glow.
Ignition Temperature :-
(i) It is the minimum temperature at which any material catches fire.
(ii) If the temperature of combustible substance is lower than the ignition temperature then the substance will not burn.
Example: (i) Cooking oil catching fire when a frying pan is kept for long on a burning stove.
(ii) Kerosene oil and wood do not catch fire on their own at room temperature. But, if kerosene oil is heated a little, it will catch fire. But if wood is heated a little, it would still not catch fire
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Answer:
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