Question

what is flame
explain the three zone of flame
pls answer
I will mark as brainlists
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Answer 1

Answer:

1. The innermost zone:   The innermost zone is the zone which is formed just around the wick of the candle flame as the candle burns.  It is also known as dark zone of the flame. It consists of hot, unburnt vapours of the combustible material. There is no air present here.  It is the least hot of all the zones.

2. Middle zone:  The middle zone also known as luminous zone is the zone which is moderately hot with limited oxygen supply. Hence, the fuel vapours burn partially and produce carbon particles. These particles then leave the flame as smoke and soot. This zone is the major part of the flame. The colour of this zone is yellow.

3. The outermost zone:   The outermost zone also known as non-luminous zone is the zone of complete combustion. The ample presence of oxygen (or air) aids in complete combustion. It is the hottest zone of the candle flame and does not produce much light. It is blue in colour.

Explanation:

Answer 2

$\mathfrak{\large{\underline{\underline{Answer :-}}}}$

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$\textbf{\small{\underline{Dark zone or the innermost zone:}}}$

• The coldest of all the zones, the dark zone is formed just around the wick of the candle flame.

• As the candle is ignited by the matchstick, the melted wax moves up through the cotton wick and vaporises just around the wick creating a dark or a black coloured zone.

• This one is deficient in air and hence a zone where no complete combustion takes place.

\rule{300}{1.5}

$\textbf{\small{\underline{Luminous zone or the middle zone:}}}$

• The luminous zone is the zone which is moderately hot. .

• This zone lies between the dark zone and the outermost non-luminous zone.

• The zone is yellowish in colour.

• The yellow colour is associated mostly with the burning of a candle.

• Just above it is an orange tinge which is formed as the candle continues to burn.

• With limited oxygen supply to this zone, the wax particles decompose to form carbon particles.

\rule{300}{1.5}

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$\textbf{\small{\underline{Non-luminous zone of the outer zone:}}}$

• This is the hottest zone. The ample presence of oxygen in this zone makes it the zone of complete combustion.

• It looks almost invisible and thus the name, non luminous

Hope it's help you❤️