Find the exit moist air humidity ratio

Question

Problem

1. Consider 100 m³ of atmospheric air which is an air-water vapor mixture at 100 kPa, 15^oC and 40% relative humidity. Find the mass of water and the humidity ratio. What is the dew point of the mixture?

2. A flow of 2 kg/s completely dry air at T₁,100 kPa is cooled down to 10^oC by spraying liquid water at 10^oC, 100 kPa into it so that it becomes saturated moist air at 10^oC. The process is steady state with no external heat transfer or work. Find the exit moist air humidity ratio and the flow rate of liquid water. Also find the dry air inlet temperature T₁.

The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.