When water is boiling, where do the air bubbles come from?
#asknostr
Discussion
Its water vapor
I still don't get the how. A pan has a hot surface at the bottom and the water touching the bottom of the pan turns to steam, OK that's cool. The steam water molecules are moving so fast and with so much energy they push the water out of the way, but surely the gap that is created by the pushing is a vacuum no?
Your throat
Your question is actually valid - cold water dissolves a lot of air, and heating drives it out.
But most of the gas in those bubbles is going to be water vapour.
Thank you buddy. I tried to zap you for such a fantastic answer but couldn't. Drop me an invoice for 420 SATs please.
I don't understand the answer and for my sanity's sake I'm about to use a relatively vast amount of precious time to figure out why hot make bubble. An ELI5 would be much appreciated, prem