When water boils and you suddenly shut the heat off, a lot of steam arises from it just after you shut the heat off. Why this happens, I thought that maybe water condenzes very fast in small droplets so they get flown up?
Even water below boiling point has high partial vapour tension.
The gas containing mostly vapour, being hot and having low average molecular mass, has significantly lower density than air. Therefore, it raises up.
At contact with air, it quickly cools down and the vapour condensates.
The droplets are small enough to be taken upwards by the strong thermal vertical convection.