5- Fluid A at temperature T, is flowing a pipe of diameter D and length L. The flow is steady state, Newtonian, laminar and incompressible. Neglect the gravitational force. The inner surface of pipe wall is covered by species B (Cb at walls is Cbo). While the fluid A flows through the pipe the species B is being diffused into flowing fluid A such that total molar concentration can be assumed constant. Consider viscosity, diffusivity and conductivity coefficient are all constant, and all velocities are zero except in the flow direction. Clearly express all of your assumptions. a) Develop continuity equation for both species A and B. write down all boundary conditions. b) ) Develop overall continuity and momentum equations and boundary conditions for this flowing system. L A TV