The dry- and the wet- bulb temperatures of atmospheric air in a 5 meter*5 meter*3 meter room at 1 atm (101.325 kPa) pressure are measured with a sling psychrometer and determined to be 25 and 15 °C, respectively. Calculate (a) The specific humidity, (b)The relative humidity, (c) The dew point temperature, (d)The enthalpy of the moist air, (e) The mass of the dry air in the room. (f) If the moist air is cooled at a constant pressure to 5 °C, find the amount of water removed per unit mass of dry air in this cooling process. (g)If the moist air is cooled at a constant volume to 5 °C, find the temperature at which condensation actually begins, in °C.