The solute $HCl(A)$ is diffusing through a thin film of water $(B)2\mathrm{.}0mm$ thick at $283K.$ The concentration of $HCL$ at point $1$ at one boundary of the film is $12\mathrm{.}0wt\%HCl($density ${}_1=1060\mathrm{.}7k\frac{g}{m^3})$ and at the other boundary at point $2$ it is $)=(1030\mathrm{.}3\frac{kg}{m^3}.$ The diffusion coefficient of $HCl$ in water is $2\mathrm{.}510-9m\frac{2}{s}.$ Let us assume that it is steady state and one boundary impermeable to water.

a$.$ Draw the schematic diagram showing the above conditions.

b$.$ Is it equimolar or unimolar diffusion case?

c$.$ Convert the concentration of $HCl$ in terms of mole fraction.

d$.$ Write down the equation to calculate the flux of $HCl.$

e$.$ Calculate the flux of $HCl$ in $kg*mo\frac{l}{s}*m^2.$