A flow of moist air at 45 c, 10% relative humidity with a flow rate of 0.2 kg/s dry air is mixed with a flow of moist air at 25 c, and absolute humidity of w = 0.018 with a rate of 0.3 kg/s dry air. the mixing takes place in an air duct at 100 kpa and there is no significant heat transfer. after the mixing there is heat transfer to a final temperature of 25oc. find the temperature and relative humidity after mixing. find the heat transfer and the final exit relative humidity