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An evacuated 1-ft3 tank is connected by a valve to a nitrogen supply line flowing air at 120 psi and70oF. A valve is opened allowing air to flow into the tank until the pressure reaches 90 psi. How much mass flowed into the tank and what is its final temperature? Assume the process is adiabatic.
certain microalloyed steels contain small additions of vanadium or niobium that permit the grain size to be reduced to
an undeformed specimen of some alloy has an average grain diameter of 0.04 mm. you are asked to reduce its average
an air-water-vapor mixture enters a cooler-dehumidifier at the rate of 1000 ft3min. the mixture enters at 14.7 psia
Consider a concentric pipe with inner radius of Rin and outer radius of Rout. The flow is laminar and in the direction of the axis of the pipes. Obtain the velocity profile for this geometry, u(r); and also expressions for the maximum velocity, the m..
a rigid 2-ft3 vessel contains water originally at 150of and 5.07 percent quality. the water is then heated until its
It is given that a- iron has a BCC crystal structure, an atomic radius R = 0.124 nm, and atomic weight AFe = 55.85 g/mol. Calculate the following quantities for a- iron: Lattice parameter. Total number of atoms in the unit cell. Volume of the unit ce..
a compressor installed at a whalf for loading container ships is able to provide 6 bar.g pressure into the pressure
The cylinder of a turbocharged diesel engine is filled with air at 30.0 psia and 250°F. When the intake valve closes, cylinder volume is 60.0 in3. The piston moves upward un-til cylinder volume is 4.00 in3, at which time pressure is 1100 psia. What ..
nitrogen gas at 60 kpa and 7deg c enters an adiabatic diffuser steadily with a velocity of 275 ms and leaves at 85 kpa
0.2 m3 of saturated liquid r-134a in a piston cylinder is heated at a constant pressure of 800kpa to 50 dcg c. what is
calculate the flow energy per pound-mass enthalpy and total enthalpy. two kilograms of ammonia at 200kpa .755 m3kg and
the flow curve for austenitic stainless steel has the following parameters strength coefficient 1200 mpa and
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