Draw the physical system and show the direction of transport, and fluxes, along
with the coordinate system.
b. Identify your differential volume and the IN, OUT, ACCUMALATION,
SOURCE, SINK terms.
c. Perform your molecular transport balance, assuming a one-dimensional flow
direction.
d. Derive the particular solution of the temperature distribution within the aluminum
at steady-state. State the boundary conditions you used to obtain the particular
solution (hint- boundary conditions are given in a subtle way in the problem
statement ). 

Plexiglass LAI Describe how you would mathematically model the following physical problem: clearly stating (and justifying) all of the assumptions you make: A thin aluminum strip. 3mm thick by 2 cm wide by 25 cm long, and encased in plexiglass (as shown in the sketch) has one end immersed in boiling water and the other end immersed in ice water. We wish to know the temperature distribution within the aluminum at steady-state.