A meeting hall is to be maintained at 25°C db and 18 °C wb. The barometric pressure is 760mm Hg abs. The space has a load of 59 KW; sensible and 59 KW; latent. The temperature of the supply air to be space cannot be lower than 18 °C. a) How many kilograms of air per second must be supplied? b) What is the required wet bulb temperature of the supply air? c) What is the sensible heat factor?