Question

Explain flame and its types..........
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Answer 1

Answer:

a hot glowing body of ignited gas that is generated by something on fire.

"the car was engulfed in flames

or

a vitriolic or abusive message posted on the Internet or sent by email, typically in quick response to another message

There are three basic flame types: neutral (balanced), excess acetylene (carburizing), and excess oxygen (oxidizing)

Explanation:

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Answer 2

ꕥ$\large\underline{\underline{\rm\red{Flame}:}}$

Flame may be defined as the region over which gases burn. When you burn a piece of paper or wax candle, a flame is produced.

Observe the attached picture. You'll see a flame has three zones. Let's understand these zones.

1. $\underline{\underline{\rm\orange{Innermost\:zone}:}}$This zone consists of unburnt wax vapours given off by the molten wax. It is the coldest part of the flame.

2. $\underline{\underline{\rm\orange{Middle\:zone}:}}$In this zone, partial combustion of wax vapours takes place with the liberation of a lot of energy. This energy partly decomposes the wax vapour into carbon particles. This zone of the flame is hotter than the dark inner zone; it is yellow in colour.

3. $\underline{\underline{\rm\orange{Outermost\:zone}:}}$ It is a zone of complete combustion of wax vapours and carbon particles. The air, from the sides of the flames, mixes with unburnt wax vapours and carbon particles (from the luminous zone) and burns them completely to form carbon dioxide gas and water vapour. It is the hottest part of the flame.

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Extra Information :

• Burning of a substance in the presence of oxygen to produce heat and light is called combustion.

• A material which on heating in the presence of air catches fire easily and produces heat and light.

• Oxygen is known as supporter of combustion because it helps in combustion of fuels.

• The three zones of a candle flame are different because they differ in the extent of combustion of wax vapours in them.

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