A thin slab of solid salt $($NaCl$),$ with dimensions of $0\mathrm{.}15$ m x $0\mathrm{.}15$ m$,$ is being dragged through seawater $($kinematic viscosity $=1\mathrm{.}022$ x $106$ m$2/$s$)$ at an average relative velocity of $0\mathrm{.}3$ m$/$s$.$ The seawater at $18\backslash$deg C has a salt concentration of $31$ kg$/$m$3.$ You can assume that the solubility of NaCl in seawater is close to the solubility of NaCl in fresh water at $18\backslash$deg C $($~$35$ g$/100$ mL$).$ Given that the average concentration of seawater$+$salt slurry adjacent to the solid salt slab is $53\mathrm{.}288$

kgmol$/$m$3,$ and the average concentration of seawater is equal to $55\mathrm{.}761$ kgmol$/$m$3$ away from the slab, determine the mass transfer rate $($in kgmole$/$s$)$ of salt being dissolved in the seawater assuming seawater is a binary mixture of NaCl and water. You can take the diffusion coefficient of salt in seawater as $1\mathrm{.}2$ x $109$ m$2/$s$.($Can you solve it according to mass transfer and writing assumption?$)$