why does a flame always burn upwards ?
anushka968530:
because flame is extremely hot and thus less dense than air and thus rises
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Hello Samridh!
We know that a flame is the result of burning of any combustible substance. When a combustible substance is burnt, first of all, it gets converted into liquid(for a short time) and then into gas or vapour, which happens very inconspicuously. The hot vapour, as it burns, rises upwards by convection process. As a result, the flame produced also rises to the same direction, i.e., upwards.
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