Heat of Vaporization

This program begins by defining heat of vaporization is the amount of heat that must be added or given off to vaporize one gram or kilogram of a substance and is expressed as J/g or J/kg. Through real, live footage and animation, students will come to understand what happens during vaporization. Viewers will learn that during a phase change heat is absorbed or given off by a substance but no change in temperature of the substance occurs.