Question

why is the colour of the flame is sometimes blue and sometimes yellow​

Answer 1

Answer:

why is the colour of the flame is sometimes blue and sometimes yellow because-

Explanation:

• It is the result of excited molecular radicals in the flame, which mostly emit their light in the blue spectrum. A candle flame is a good example. At the base of the wick, the flames will be blue. Farther away, there will be less molecular radicals and more soot, resulting in yellow flames.
• You won't see all of the colors of the spectrum, because they have less to do with the black body properties of the candle and more with the fuel composition and purity.

• Fire colors can easily be manipulated. You all must have seen that one experiment where university students impress high-school children by sprinkling metal powders into flames, changing their color. So yes, there's that trick. You must have been amazed. I know I was

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Answer 2

Explanation:

Complete explanation

The flame have 3 parts:

1) Inner part - This is the innermost part of the flame. It is the part closest to the wick.

2) Middle part - The yellow color region which is the bright part of the flame is the middle zone

3)The outer zone of a flame is blue:It is a non-luminous zone.In this zone,complete combustion of the fuel takes place because there is plenty of air around it.

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