Why does kerosene burn with a blue flame in a wick stove but produces a yellow flame when burnt in a lamp?
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Answered by
21
This is because in a stove, it gets plenty of O2 so it burns with a blue flame. blue flame indicates complete combustion due to enough supply of O2.
On the other hand when it is burn it a lamp, it does not get enough O2, thereby produces a yellow flame
On the other hand when it is burn it a lamp, it does not get enough O2, thereby produces a yellow flame
Answered by
9
In lamp, kerosene vapour burns within a limited amount of air. This results for incomplete combustion with production of unburnt carbon particles. These carbon particles then glow to produce yellow flame.
In wick stove, Air enters through provided perforated sheet and results for complete combustion. This leads for the blue flame.
Thus, blue flame is due to complete combustion whereas yellow flame is due to incomplete combustion.
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