Answer
Because water molecules are strongly attracted to one another, it requires a great deal of thermal energy to separate them. Thus, the heat of vaporization of water is higher than for non-polar fluids. The heat of vaporization of a fluid is the amount of heat required to convert a unit mass of the fluid into vapor, with no change in temperature and pressure --for example, atmospheric pressure, and 100 deg, Celsius.
Work Step by Step
The heat of vaporization of water is 2260 kJ/kg ; that of ethyl alcohol is 846 kJ/kg; that of acetic
acid is 999 kJ/kg, and that of acetic acid is 402 kJ/kg.
1.0 kilojoule (kJ) is equivalent to 240 calories
1.0 kilogram(kg) = 1000 grams
