The average air velocity in the intake duct of an air conditioner is 3 m/s. The intake air temperature is 35°C. The air comes out of  air conditioner at 20°C and flows through a duct, also at 3m/s. The ambient pressure is 100 kPa, which can be assumed to be the condition at both the inlet and exit. What is the ratio of the cross-sectional areas of the ducts assuming no condensation moisture? Discuss how moisture condensation affects the velocity in outlet duct.