Question

Can anyone explain why the hot water rises up?

Answer 1

$Bonjour$

●The convection happens because hot water has a lower density and thus rises up to the surface where it cools and sinks down to the bottom again.

● When water starts boiling there is the additional effect of the formation of water vapor bubbles that have a much stronger buoyancy than hot water.

Answer 2

Explanation:

because heat flows from high potential to low potential just like current

if we observe temperature below water level is greater than temperature at surface level

∆t = 1°C or 2°C

so that why hot water rises up

it is type of Convection