Problem on heating and humidification with psychometric chart /RAC

The atmospheric air at 25°C dry bulb temperature and 12°C wet bulb temperature is flowing at the rate of 100 m3/min through the duct. The dry saturated steam at 100°C is injected into the air steam at the rate of 72 kg/h . Calculate specific humidity and enthalpy of the leaving air. Also determine dry bulb temperature, wet bulb temperature and relative humidity of the leaving air.