A 1 m volume of air initially has a temperature of 20C, a pressure of 100 kPa, and a dew point of 10 C. (a) Calculate the relative humidity, the specific humidity, and the total mixture mass (air plus water vapour). (b) If this mixture is then compressed isothermally to 300 kPa, calculate the final specific and relative humidities and the mass of water condensed