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A cylindrical specimen of some metal alloy 8.2mm in diameter is stressed in tension. A force of 10,000N produces an elastic reduction in specimen diameter of 4.7103mm. Compute the elastic modulus of this material if the value of its Poisson's ratio is 0.40 . The purification of hydrogen gas is possible by diffusion through a thin palladium sheet. Calculate the number of kilograms of hydrogen that pass per hour through a 2.6-mm-thick sheet of palladium having an area of 0.39m2 at 500C. Assume a diffusion coefficient of 8.8108m2/s, that the concentrations at the high- and low-pressure sides of the plates are 2.5 and 0.21kg/m3 of hydrogen per cubic meter of palladium, and that steady-state conditions have been attained. M= kg/h