Consider a one acre field with a 100 ft high layer of air exactlyover the field. Water vapor condenses and forms a 0.1 mm layer ofdew on the surface of the field. If the air temperature was 60 oFwhen the dew forms, what is the final temperature of this layer ofair (in o F)? Assumptions and Values: • Let the surface of thefield be perfectly flat. • Let the air absorb all heat from theformation of the dew. • Let the heat of vaporization of water be∆Hvap = 44 kJ mol • Let the density of the air be Ïair = 1.2 kg m3• Let the specific heat of the air be Cair = 1.01 J g · oC
