Engineering, 29.09.2019 01:30, miguelperdomo
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 (in kg/h) through a 3.4-mm thick sheet of palladium having an area of 0.25 m^2 at 500°c. assume a diffusion coefficient of 6.0 x 10-8 m^2/s, that the concentrations at the high- and low-pressure sides of the plate are 4.6 and 0.30 kg/m^3 (kilogram of hydrogen per cubic meter of palladium), and that steady-state conditions have been attained.
Answers: 3
Engineering, 03.07.2019 14:10, makaylashrout77
Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.
Answers: 2
Engineering, 04.07.2019 18:10, settasav9641
Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.
Answers: 3
Engineering, 04.07.2019 18:10, anna22684
Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.
Answers: 2
The purification of hydrogen gas is possible by diffusion through a thin palladium sheet. calculate...
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