2007-06-21 07:59:15 · 3 answers · asked by bob b 2 in Science & Mathematics ➔ Chemistry
The skin will cool as the sweat evaporates. The water on the skin will evaporate just like rain water after it runs. The warmer the temperature the higher rate of evaporation. The humidity will also factor into the evaporation rate, and how much wind is passing over the surface.
2007-06-21 08:08:49 · answer #1 · answered by jleyendo 5 · 0⤊ 0⤋
It takes a whopping 540 cal/g to boil water at 100C. Vaporization is the same whether you're pouring the heat in on a stovetop or evaporating it from skin at 30C. Putting that much heat in from the skin can really cool things.
2007-06-21 08:14:19 · answer #2 · answered by steve_geo1 7 · 0⤊ 0⤋
Because it is taking a lot of energy (in the form of heat) off your skin
2007-06-21 08:03:10 · answer #3 · answered by njdevil 5 · 0⤊ 0⤋