How does sweat cool u off?

how does body sweat cool u off
How does sweat cool u off?
You start with sweat and you both at some temperature, when you're finished the sweat is now vapor, so it must have absorbed heat, that leaves you as providing heat and thus cooler.





Or you start with a bunch of sweat molecules, some are very hot and become vapor. That reduces the average energy of the remaining ones (shipping A students away reduces the remaining class average) which will cool you off.
How does sweat cool u off?
the sweat allows your warm skin to heat the sweat and evaporate, resulting in a cooling effect





heat is transfered from the skin to the beads of sweat
Reply:water in sweat evporates; evaporation is a cooling process; you can run under a sprinkler and then dry off and the effect will be the same...cooler skin/body temperature.