Mass transfer probelm for Engineering(Chemical Engineering. need help

Please read problem all the way through before answering.

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.

4. What is the concentration of water in air at the end of the 20 cm strip of water? Hint: you can1 assume a differential of area of dxdz

5. Sketch how will the concentration of water changes along x. Make sure to indicate minimum and maximum possible values and to provide an appropriate shape (e.g., linear, quadratic, cubic, exponential, logarithmic)

This is what is being asked.

Dry air is blown (20 m/s) across the flat surface of a strip of water of L = 20 cm, while at room temperature and pressure (25 C and 101 325 Pa) as shown below. For this geometry, the convective mass transfer coefficient can be estimated by: