A flavor compound is held within a $2\mathrm{.}5$ diameter time$-$release sphere. The sphere is placed in a liquid food and will release the flavor compound after one month of storage at $20\backslash$deg C$.$ The concentration of flavor within the sphere is $80\%$ and the mass diffusivity for the flavor compound within the liquid food is $30$ x $10-6$ m$2/$hr$.$ Estimate the steady$-$state mass flux of flavor into the liquid food from the surface of the time$-$release sphere. The convective mass transfer coefficient is $50$ m$/$s$.$ Please try to use this given formula $($mb$/$A $=-$D$*($c$/$x$))$ Fick's Law of diffusion.