Compute the number of kilograms of hydrogen that pass through a 5-mm thick sheet of palladium having an area of 0.20 m2 at 500 oC. Assume a diffusion coefficient of 1X 10-8 m2/s, that the concentrations at the high and low pressure sides of the palladium plate are 2.4 and 0.6 kg of hydrogen per cubic meter of palladium, and that steady-state condition has been achieved.