Question

What are the different parts in a flame, and in which part complete combustion takes place?​

Answer 1

Answer:

Outer Zone: This zone is blue in colour. It is the hottest part of the flame, because complete combustion takes place in this zone.

Middle Zone: This zone is yellow and orange in colour. This zone is moderately hot because partial combustion takes place in this zone.

Inner Zone: This zone is dark in colour.

Answer 2

Answer:

• Inner Part: This is the innermost part of the flame. It is the part closest to the wick. You might assume that this is the hottest part of the flame. However, it is the least hot. This is the black part of the flames that contains unburnt particles of the carbon from the wick i.e. unburnt fuel.
• Middle Part: This is the biggest part of the flame. The colors in this are varying shades of yellow and orange. This is the luminous flame because it emits light. This part is also not extremely hot. This is because this part gets a limited supply of oxygen. So incomplete combustion takes place here. Which is why it burns orange and is luminous.
• Outer Part: Now this is the hottest part of the flame. This part has an unlimited supply of oxygen. So complete combustion takes place here. Hence it is the hottest part of the flame. Also, this part of the flames burns with a blue color. It is the non-luminous, i.e. does not emit light.

Complete combustion is a combustion process that takes place in the presence of adequate air or oxygen. Complete combustion is a combustion process that takes place in the presence of inadequate air or oxygen.

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