A thin slab of solid salt $(NaCl),$ with dimensions of $0\mathrm{.}15m0\mathrm{.}15m,$ is being dragged through seawater $($kinematic viscosity $=1\mathrm{.}022{10}^{-6}\frac{m^2}{s})$ at an average relative velocity of $0\mathrm{.}3\frac{m}{s}.$ The seawater at $18C$ has a salt concentration of $31k\frac{g}{m^3}.$ You can assume that the solubility of NaCl in seawater is close to the solubility of NaCl in fresh water at $18C(35\frac{g}{100}mL).$ Given that the average concentration of seawater$+$salt slurry adjacent to the solid salt slab is $53\mathrm{.}288$ kgmo$\frac{l}{m^3},$ and the average concentration of seawater is equal to $55\mathrm{.}761$kgmo$\frac{l}{m^3}$ 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 $1\mathrm{.}2{10}^{-9}\frac{m^2}{s}.($Can you solve it according to mass transfer and writing assumption?$)$