A material (species A) is diffusing through a plane covered by a catalytic material and turns into species B by a catalytic reaction on the surface of the wall as shown below. The reaction is 3AB, and species B is diffusing in the reverse direction (NBz). Taking the film thickness in which diffusion is occuring as d, and assuming the total concentration as constant. The molar ratio of A at a distance d from the plane is XO. Take reaction constant k as consant. Use a box for your answers. Katalitik yzey A B 8 XA XA0 a) What is the governing Diff. eqn. for this problem (list your assumptions) b) Write down the boundary conditions and solve for conc. Distribution for A. c) What is NAZ?

A material (species A ) is diffusing through a plane covered by a catalytic material and turns into species B by a catalytic reaction on the surface of the wall as shown below. The reaction is 3AB, and species B is diffusing in the reverse direction (NBZ). Taking the film thickness in which diffusion is occuring as d, and assuming the total concentration as constant. The molar ratio of A at a distance d from the plane is xA0. Take reaction constant k as consant. Use a box for your answers. a) What is the governing Diff. eqn. for this problem (list your assumptions) b) Write down the boundary conditions and solve for conc. Distribution for A. c) What is NAZ