= = The stagnant liquid B in a container that is 10 cm high (L = 10 cm) is exposed to the non reactant gas A at time t = 0. The concentration of A, dissolved physically in B, reaches mol CAO = 0.01 at the interface instantly and remains constant. The diffusion coefficient m3 m of A in B is DAB = 2x10-m? /s. Determine the evolution of concentration of A within 2 the container. Plot the flux of A dissolved in B against time. Initial condition CA (Z, O) = 0 Boundary condition Gas A IZ at Z = 0 CAO(t) =CAO 10cm at Z=L = 0 liquid B az IZ L Use explicit method