The solute HCl (A) is diffusing through a thin film of water (B) 2.0 mm thick at 283 K. The concentration of HCl at point 1 at one boundary of the film is 12.0 wt% HCl (density r1 =1060.7 kg/m3) and...

The solute HCl (A) is diffusing through a thin film of water (B) 2.0 mm thick at 283 K. The concentration of HCl at point 1 at one boundary of the film is 12.0 wt% HCl (density r1 =1060.7 kg/m3) and at the other boundary at point 2 it is 6.0wt% HCl (r2=1030.3 kg/m3). The diffusion coefficient of HCl in water is 2.5 x10-9 m2/s. Assuming steady state and one boundary impermeable to water calculate flux of HCl in kgmol/sm2