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A thin 1 mm thick ?-iron membrane at 250°C is subjected to an atmosphere of hydrogen gas on one side, and the concentration of hydrogen in the iron, in weight percent, is 7.02 x 10-5 wt%. The concentration of hydrogen on the other side of the membrane is 9.93 x 10-6 wt%. Calculate the concentrations of hydrogen in the iron on both sides of the membrane in kgm-3.
The mean diameter of a conical friction clutch is 250mm with a width of the conical surface being 50mm. The clutch is lined with a material having a coefficient of friction of 0.25
The diameter of the tube is 13 cm and its length is 60 m. Determine the overall heat transfer coefficient of this heat exchanger using (a) LMTD and (b) -NTU method.
Assume that viscous effects are negligible Plot this data using appropriate dimensionless groups
initially 0.05 kg of air is contained in a piston-cylinder device at 200 degc and 1.6 mpa. the air then expands at
Vertical plane due to the action of the external moment and determine the external moment or force.
a vehicle starts from rest then moves rectilinear with a velocity of v 2t2 for 5 s until it reaches a velocity of 50
a cylindrical metal rod length 2l radius r thermal conductivity k is embedded in a well-insulated wall such that half
This problem came from the "kinematics of particles" part holding the "Determination of the motion of a particle" section, so use the formula relating to this section of this part.
Please find the mass of gasoline fuel injected into each cylinder in each working cycle.
refrigerant 134a at 400 psia has a specific volume of 0.1386 ft3lbm. determine the temperature of the refrigerant based
if the u.s. fleet of vehicles suddenly became 15 more fuel efficient how much annual emissions of co2 would that
an airplane is flying at v0130 mph and with a constant time rate of increase of speed v22fts2 when it starts to climb
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