Hi all. I've been thinking about this. When we take a warm shower we see water vapor coming out. First of all, why do we see this vapor? Isn't vapor supposed to come up at 100°C when at a pressure of 1atm? When I'm in the shower I'm at about 1atm of pressure I suppose and clearly not at 100°C! Also, when we go out of the tub we can see this condensated water (?) on our bathroom mirror. Why does this happen? My instinct tells me it's the water vapor being condensated by the cold mirror... but again, why was there water vapor in the first place? Any help in understanding this, is appreciated. Thanks in advance.