1. A 12x13x10 m room contains an air-water vapor mixture at 30°C (P 4.25 kPa). The barometric pressure is standard (101.3 k Pa) and the partial pressure of the water vapor is measured to be 1.2 kPa (T-10 °C). Obtain: 1. A 12x13x10 m room contains an air-water vapor mixture at 30°C (P 4.25 kPa). The barometric pressure is standard (101.3 k Pa) and the partial pressure of the water vapor is measured to be 1.2 kPa (T-10 °C). Obtain: (a) Relative humidity, (b) Humidity ratio, (c) Dew-point temperature, (d) Mass of water vapor contained in the room, (e) Mass of air in the room