Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 (It is still the same in the 6th edition.)Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 But…Air at 20oC, 90% RH: cwv = (0.90)(0.961) = 0.86 mol m-3 Air at 4oC, cwv = 0.378 mol m-3 --> condensation! 100% RH