ELI5, why does hot air rise and have low pressure and cool air sink and has high pressure, if energy and temperature do not change the mass of an object?
In: 8
Warmer molecules are more energised, so they move around more and thus end up generally being further apart from each other on the whole. This increases the volume of the same mass, meaning it’s less dense.
In other words, there’s the same amount of air, but it takes up more space when it’s warm than when it’s cool.
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