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Re: [RC] Sponging - Truman PrevattFirst it is not a "chemistry" explanation it is a physics explanation ;-) . It called latent heat of vaporization. Latent heat is that heat that is absorbed or released during a phase change (solid to liquid, liquid to gas, gas to liquid, gas to plasma, etc).As for a breeze it has little to do with the sweat. When the sweat absorbs the latent heat it is a gas and is gone. If there is no breeze, it releases heats up the air around the body since the air around the body and it also raises the local humidity around the body which makes evaporation more difficult. The breeze does to things. First it removes the water vapor from around the body - hence lowering the local humidity hence making evaporative cooling more efficient. Second it replaces the warm air with cooler air which promotes another form of heat transfer - convection. The breeze is really a form of forced convective cooling and is quite efficient. http://en.wikipedia.org/wiki/Convection Truman rides2far@xxxxxxxx wrote: >From a chemistry standpoint, when the water evaporates, the water molecule must absorb heat from the horse in order to shift from liquid state to the gas state. This is one reason why your body sweats, same >>>end result when your sweat evaporates. "The trouble with fighting for human freedom is that one spends most of one's time defending scoundrels. For it is against scoundrels that oppressive laws are first aimed, and oppression must be stopped at the beginning if it is to be stopped at all." H. L. Mencken =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Ridecamp is a service of Endurance Net, http://www.endurance.net. Information, Policy, Disclaimer: http://www.endurance.net/Ridecamp Subscribe/Unsubscribe http://www.endurance.net/ridecamp/logon.asp Ride Long and Ride Safe!! =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
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