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What is the temperature of different zones of the candle flame

Posted by Akanksha Sandhu 7 years ago

CBSE > Class 08 > Science

2 answers

Yogita Ingle 7 years ago

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.
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.
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.

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Kaivalya Mase 7 years ago

Temp. of non lumonous zone is 1400 degree Celsius. Of luminous zone is 800 degree Celsius. Of dark zone is 600 degree Celsius.

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CBSE > Class 08 > Science