Question: Hydrogen is diffusing through a Pd tube with an outer diameter of 30 mils and a wall thickness of 5 mils. Assume that the cylindrical

Hydrogen is diffusing through a Pd tube with an outer diameter of 30 mils and a wall thickness of 5 mils. Assume that the cylindrical symmetry cannot be ignored in this case. Calculate and plot the concentration, C(r), in mol/cm3 as a function of radius for the steady-state concentration profile through the wall thickness in terms of the inner tube radius, R1, and the outer tube radius, R2, where it can be assumed that pR2(H2) = 1atm.

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