A simple rain gauge is just a cylinder into which rain falls. The rain gauge shown is a cylinder that is 12 cm deep and 2 cm in diameter. It

currently filled with 2.5 cm of water. The relative humidity (RH = 100 x pa/pa*) of the ambient air is 40%. The air and the water are at 25°C and1 atm a) Find the steady-state molar flux at which water evaporates from the tube. Use both the dilute and concentrated solutions that are appropriate for this problem and compare the results. Identify the reasons for any similarities or differences in the results. b) What is the molar concentration of the water vapor in the rain gauge 5 cm from the top? c) Consider the effect of the wind on evaporation and concentration profile under the following conditions: i) a perfectly calm day ii) a light breeze iii) a strong wind