Air at 300K and 100 kPa has a dew point of 289K. a) What is the percent relative humidity? b) To what pressure must this air be compressed to cause condensation to start (the temperature remains at 300K)? c) To what temperature must this air be cooled to remove 25 percent of the moisture (the pressure stays constant at 100 kPa)? d) What would be the percent relative humidity of this air after heating to 340K (at constant pressure)? e) Did the molal saturation change during the heating indicated in part (d)? DATA log (P* H2O) {mm Hg} = 7.96681 [1668.210 / (TC + 228)] Relative Humidity: PH2O /P* H2O Molal Humidity: PH2O / (P - PH2O) = nvapor/nvapor-free gas Absolute Humidity: PH2O MH2O /((P - PH2O)Mdry air) = massvapor/massvapor-free gas Percentage Humidity: [PH2O /(P - PH2O)] / [P* H2O/ (P - P* H2O)]*100 =[nvapor/nvapor-free gas]/[ nvapor/nvaporfree gas]*100