Originally Posted by
_ForceD_
The answers are no, and no. It wasn't, and didn't get wet. BUT...you explain first that moisture isn't THAT big of a factor to impact the change in the temp of the water bottle -- "... water vapor content between bone dry air and saturated air, it's not going to swing the general heat convective properties of the gross fluid THAT much." But then say that the moisture will make and impact if the bottle is wet. But if the bottle is dry, and the air is very humid...why can't the moist air conduct the heat exchange as the bike/bottle moves through it? It's not evaporation, but the warm temp of the bottle can be absorbed my the moisture in the air and then carried away as the bike/bottle move...sort of like evaporation.
Dan
Yes. It's not convective, but conduction. Also water molecules contacting and moving away from the surface will have higher thermal conductivity than dry air. Sucking the warmth out faster.
Full disclosure, I'm not 100% certain that air with water vapor has higher thermal conduction at low temperatures.