Moist air at:31°C dry bulb, 22°C wet bulb and 1013.25. mbar barometric pressure flows over a cooler cojl and leaves it at a state of 10°C dry bulb and 7.95 g w.v./kg d.a. (a) If the air is required to offset 'a-sensible' heat gain of 2.5 kW and a "latent heat gain of 0.35 kW in a room being air-conditioned, calculate the mass of dry air which must be supplied to the room in order to maintain a dry-bulb tempera- ture of. 23.5°C inside. (b) What will be the relative humidity in the room? (c). If the sensible heat gain is diminished by 1.75 kW but the latent heat gain remains unchanged, at what temperature and moisture content must ihe air be supplied to the room?