Question 3
How will you prove that air supports burning?
Question 3
How will you prove that air supports burning?
Take a candle and fix it on a table. The candle is lighted. The candle will continue to burn due to continuously available air(oxygen) from the surroundings which are required for combustion.
Now cover the burning candle by putting an inverted gas jar over it. After a short time, the candle stops burning and gets extinguished due to the unavailability of oxygen. But When the burning candle is covered with the gas jar, then the candle takes away the oxygen necessary for burning from the air enclosed in the gas jar. After some time, when all the oxygen of air inside the gas jar is used up, then the burning candle gets extinguished. This proves that air is necessary for the burning or combustion of substances.
Take a candle and fix it on a table. The candle is lighted. The candle will continue to burn due to continuously available air(oxygen) from the surroundings which are required for combustion.
Now cover the burning candle by putting an inverted gas jar over it. After a short time, the candle stops burning and gets extinguished due to the unavailability of oxygen. But When the burning candle is covered with the gas jar, then the candle takes away the oxygen necessary for burning from the air enclosed in the gas jar. After some time, when all the oxygen of air inside the gas jar is used up, then the burning candle gets extinguished. This proves that air is necessary for the burning or combustion of substances.
