please answer fully without copying another answer using the given data (per hour m2) for guaranteed like

data values below

3 3 The production of a biodegradable bottle involves forcing air at temperature of 20C, and relative humidity of 40% to flow at a velocity of 2.0m/s over the surface of a polymer solution dissolved in water. The length parallel to flow is 50 cm and the average surface temperature is 16C (a) Estimate the amount of water evaporated per hr/m? of surface. Data: Mass diffusivity, D=0.256 cm/s; Partial pressure of water vapour at 20C and relative humidity 40% is 0.011 bar, at 16C and saturated, the vapour pressure is 0.017bar; Viscosity and density of air are: 18.38 X10? Pa and 1.22kg/m, respectively; Specific water vapour constant, Rw=461.889 J/kg