2. It is desired to heat and humidify 1.0 m³/s of air from an initial state defined by a temperature of 16°C (db) and relative humidity of 30 percent is to a final state of 43°C (db) and 30 percent relative humidity. The air will first be heated by a hot water coil, followed by adiabatic humidification using saturated vapor at 34.5 kPa. Using the psychrometric chart, find the heat transfer rate for the heating coil and the mass flow rate of the water vapor, and sketch the processes on a skeleton chart showing pertinent data. Assume sea-level pressure. Answers: (a) 39 kW (b) 0.0161 kg/s