Question

After swimming in a pool or lake, the air feels cool because heat is required to evaporate the water from our skin. How much heat is required to evaporate 28.8 g of water? The enthalpy of vaporization of water is 44.0 kJ/mol.

Answer 1

$Heat = 44.0 ×\frac {28.8 }{ 18 }= 70.4kJ$