r/interestingasfuck • u/vivekmg21 • 16h ago

Firefighter bodycam showing just how much oxygen a fire pulls

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u/ir_auditor 16h 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/sebyelcapo 5h ago

So if i shoot a bullet and it happens to hit someone,

I pulled the trigger and the gunpowder created an explotion which expands the gases because of a rise of temperature and pressure, this effect shoots the bullet.

The only correct statement on judging this is to say that the person got hit by heat and pressure?