Here is what the problem is asking for,

1. Will the flux and the mass transfer coefficient change along the x direction?

2. Calculate Reynolds number and the convective mass transfer coefficient for this system.

3. What is the flux of water right at x = 0+dx?

4. What is the concentration of water in air at the end of the 20 cm strip of water? Hint: you can assume a differential of area of dxdz

Dry air is blown (20m/s) across the flat surface of a strip of water of L=20cm, while at room temperature and pressure (25C and 101325Pa) as shown below. For this geometry, the convective mass transfer coefficient can be estimated by: ukcSc2/3=0.037Re0.2 io. When 1105