Q: A manometer containing oil (ρ = 850 kg/m3)
A manometer containing oil (ρ = 850 kg/m3) is attached to a tank filled with air. If the oil-level difference between the two columns is 80 cm and the atmospheric pressure is 98 kPa, determine the abs...
See AnswerQ: Repeat Prob. 6–121E when the supply line carries oxygen
Repeat Prob. 6–121E when the supply line carries oxygen at 300 psia and 450°F. Data from Prob. 6-121E: The weighted piston of the device shown in Fig. P6â€...
See AnswerQ: Underground water is being pumped into a pool whose cross section is
Underground water is being pumped into a pool whose cross section is 6 m × 9 m while water is discharged through a 7-cm-diameter orifice at a constant average velocity of 4 m/s. If the water level in...
See AnswerQ: A long roll of 1-m-wide and 0.
A long roll of 1-m-wide and 0.5-cm-thick 1-Mn manganese steel plate (Ï = 7854 kg/m3) coming off a furnace is to be quenched in an oil bath to a specified temperature. If the metal sheet is...
See AnswerQ: Helium steadily enters a pipe with a mass flow rate of 8
Helium steadily enters a pipe with a mass flow rate of 8 kg/s at 427°C and 100 kPa and leaves the pipe at 27°C. The pressure during the process is constant at 100 kPa. (a) Determine the heat transfer...
See AnswerQ: Air at 4.18 kg/m3 enters a nozzle that
Air at 4.18 kg/m3 enters a nozzle that has an inlet-to exit area ratio of 2:1 with a velocity of 120 m/s and leaves with a velocity of 380 m/s. Determine the density of air at the exit.
See AnswerQ: Water is boiled at 100°C electrically by a 3-
Water is boiled at 100°C electrically by a 3-kW resistance wire. Determine the rate of evaporation of water.
See AnswerQ: An air compressor compresses 15 L/s of air at 120
An air compressor compresses 15 L/s of air at 120 kPa and 20°C to 800 kPa and 300°C while consuming 6.2 kW of power. How much of this power is being used to increase the pressure of the air versus the...
See AnswerQ: A steam turbine operates with 1.6 MPa and 350°
A steam turbine operates with 1.6 MPa and 350°C steam at its inlet and saturated vapor at 30°C at its exit. The mass flow rate of the steam is 22 kg/s, and the turbine produces 1...
See AnswerQ: A desktop computer is to be cooled by a fan whose flow
A desktop computer is to be cooled by a fan whose flow rate is 0.34 m3/min. Determine the mass flow rate of air through the fan at an elevation of 3400 m where the air density is 0.7 kg/m3. Also, if t...
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