A large volume of pure water at a temperature of $200K$ is flowing parallel to a flat plate of benzoic acid. The length of the plate in the direction of flow is $0\mathrm{.}14m.$ The velocity of water is $0\mathrm{.}1\frac{m}{s}.$ The concentration of benzoic acid at the surface of the plate is its solubility in water and that is $0\mathrm{.}0245kg-mo\frac{l}{m^3}.$ The concentration of benzoic acid away from plate is practically zero $($owing to large volume flow of pure water$).$ A value of $k_G$ was experimentally determined to be $1\mathrm{.}41{10}^{-8}kg-mo\frac{l}{s-m^2(Pa)}$ for A diffusing through stagnant $B.$ The partial pressures at two points along the diffusion path are $p_{A1}=0\mathrm{.}55$atm and $p_{A2}=0\mathrm{.}095$atm and the absolute total pressure of the system is $P_T=P=1$ atm. Determine $k^{\text{'}}$ and the flux of A for equimolar counterdiffusion.