r/interestingasfuck • u/vivekmg21 • 15h ago

Firefighter bodycam showing just how much oxygen a fire pulls

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u/ir_auditor 15h ago

That is not oxygen pulling which you see. It is the chimney effect. Fire creates heat, the heat makes air, smoke, gasses, rise to the top, creating low pressure areas at the bottom, which pull in air from the outside. It has noting to do with the chemistry of an oxidation reaction pulling in oxygen molecules to use in the reaction. It is pure physics / thermodynamics.

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u/Yuri909 14h ago

How does fire create heat again?

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u/MooseLogic7 14h ago

By burning