Question

what is meant by flame

Answer 1

A flame is a hot bright stream of burning gas that comes from something that is burning.

Answer 2

                                        Flame

The portion of gas or vapour that burns in air is called flame. The flames are of two types blue flame (non-luminous) and yellow flames (luminous). Blue flame indicates that the fuel has burn completely in air or oxygen, while yellow flame indicates that the fuel has burnt in an insufficient supply of oxygen or air.

                                   

                            Extra Information    

Candle flame

A candle flame consists of three zones.

• Innermost zone

              Black zone with unburnt vapour or wax. This zone

              is the least hot part of candle

• Middle or central zone

              Yellow zone shows incomplete combustion.

• Outer most zone

              Blue zone. This zone has the highest temperature

             in the flame.