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A sheet of 0.001" thick BCC iron foil separates a high hydrogen content gas from a low hydrogen content gas at 725 degree C. 8 times 108 H atoms/cm3 are in equilibrium on one side of the foil, and 3 times 104 H atoms/cm3 are in equilibrium on the other. Determine the concentration gradient of hydrogen and the flux of the hydrogen through the foil.
the atmosphere on maris is comprised of mostly carbon dioxide at a pressure of 600 pa that is not a mistake it is in
underground water is to be pumped by a 70 efficient 3-kw submerged pump to a pool whose free surface is 30 m above the
ammonia vapor flows through a valve. it enters the valve at a pressure of 8 bar and a temperature of 120c and after
a full revolution has 100 rpm flywheel rotation. the press is equipped with two hand palm buttons mounted on the machine at a distance of 20 inches from the point of operation. How many engagement points on the flywheel would be necessary to make ..
a frictionless piston-cylinder device fitted with stops above the piston contains 1.2 kg of air at 200degc and 700 kpa.
a system for delivering lawn fertilizer in liquid form. the nozzle on the end of the hose requires 20 psig of pressure
the fastest that anyone has gotten to the top of a local mountain elevation change of 4479 ft is 32 minutes. assume a
feedwater in a steam power plant is to be heated in an ideal open feedwater heater that operates at a pressure of 0.5
Assume disturbance torques are zero and spacecraft moment of inertia is 400 kg.m2
a fan that can provide air speeds up to 50ms is to be used in a low-speed wind tunnel with atmospheric air at 25 degc.
a 4-ft concrete post is reinforced with four steel bars each with a 34 in. diameter. knowing that e of steel 29x106 psi
1. A Brayton cycle uses air and produces a net work of 14000 Btu/s with an inlet state of 60°F, 14.7 psi and a compression ratio of 16. The heat added in the combustion process is 400 Btu/lbm. If the thermal efficiency is 0.547 Determine: Using va..
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