4959
Physics Heat & Thermodynamics Level: Misc Level
The latent heat of vaporizaiton of H2O at body temperature (37.0 oC ) is 2.42 x106 J/kg. To cool the body of a 72 kg jogger (average specific heat capacity =3500 J/(kg oC ) by 1.2 C %, how many kilograms of water in the from of sweat have to be evaporated?
