Steady-State Diffusion with First-Order Chemical Reaction Consider steady-state diffusion with a first-order chemical reaction in a two-dimensional medium. The governing equation for the dimensionless concentration C is given by 8C + x y +C =0. The boundary conditions are, OC/partialx = 0 at x = 0; C = 0 at x = 1; C/Oy = 0 at y = 0, and C = 0 at y = 1. (a) Identify the eigenvalues and eigenfunctions of the problem. (b) Derive the complete solution of the equation.