An ethanol (A)-water (B) solution in the form of a stagnant film 2mm thick at 293K is in contact at one surface with an organic solvent in which ethanol is soluble and water is insoluble. At point 1, the concentration of ethanol is 17 wt% and the solution density is 973 kg/m. At point 2 the concentration of ethanol is 7 wt% and density is 988 kg / m. The diffusivity of ethanol is 0.74 x 10- m/s. Calculate the steady state flux.