Chapter 9, Problem 95AE

Interpretation Introduction

Interpretation:

The mass of water that would have to be evaporated through perspiration during 2 hrs of exercise under the given conditions needs to be calculated

Concept Introduction:

Heat of vaporization or the enthalpy of vaporization is the amount of heat absorbed for a phase transition from liquid to the vapor or gaseous state. For example in the case of water:

  ${\text{H}}_{\text{2}}\text{O(l)}\to {\text{H}}_{\text{2}}{\text{O(g) ΔH}}_{\text{vap}}\text{= 40}\text{.6 kJ/mol }$