Saturday, April 24, 2010

Sweating helps cool a body?

a) What change of state does sweating involve?


b) Why does sweating cause cooling?

Sweating helps cool a body?
I object to doing biology homework :P





a) Liquid to gas (evaporation)


b) Evaporation is an endothermic reaction, removing heat from the body to evaporate the sweat into water vapour.
Reply:im not sure why sweat causes cooling but i do know that sweating a lot causes you to loose weight


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