Moist air is passed through a cooling section where it is cooled and dehumidified. How do

(a) the specific humidity and (b) the relative humidity of air change during this process? g

When moist air is passed through a cooling section where it is cooled and dehumidified, the specific humidity will definitely decrease because the amount of water vapor that is needed for saturation also decreases, and

b) the relative humidity of air change during the process will increase because of a drop in temperature when it is cooled.