Question

so paste a picture of Forest fire and Fire extinguisher.
Que - 2) What is Flame ? Define Structure of a Flame and Show different zones of candle
flame from figure.​

Answer 1

A flame consist of three zones. ... 1) The Innermost zone of a flame is dark or black:It consist of hot,unburnt vapours of the combustible material.It is the least hot part of the flame.It is the coldest part of the flame. 2)The middle zone of a flame is yellow:It is bright and luminous

Answer 2

Explanation:

Hello friend,

Good question !

Here is your answer :-

• What is flame ?

Flame is the visible gaseous part of the fire. It is caused by highly exothermic reaction within a thin layer.

Flame has three parts :-

1. Innermost zone : It is the least hot area with a colour of black. It is most inner part of the flame and has no temperature.
2. Middle zone : It is the moderately hot zone with a colour of red and orange. It has a temperature of 27° to 280°c. It is the middle zone of the flame.
3. Outermost zone. : It is the most hottest zone with 5000°c temperature and has a colour of yellow. It is the outer zone of flame.

hope it helps you.....

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