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Is it a good approximation to consider helium at 250 kPa and 300 K as an ideal gas? Explain by considering it's reduced temperature and pressure (use Table A-2(Critical Constants)). At this temperature and pressure, how many moles of helium are in 0.1 m3?
the rigid gateoab of fig. p2.58 is hinged ato and rests against a rigid support atb. what minimum horizontal forcep is
helium initially at 327 deg. c and 100 kpa is contained in a frictionless piston-cylinder. the system is slowly cooled
Horsepower and efficiency of three-phase motor, If a fully loaded 440V, three-phase motor draws 12.4 A at 86% power factor (pf). It's speed is 1730 rpm and its torque output to a mechanical load is 29.1 lb-ft x 1.356 = 39.5 Nm.
a mining engineer plans to do hydraulic mining with a high-speedjet of water. a lake is located h300 m above the mine
derive the variation of transmitted x-ray intensity as a function of incident intensity thickness density and mass
A gas turbine receives a mixture having the following molar analysis: 10% CO2, 19% H2O, 71% N2 at 720 K, 0.35 MPa and a volumetric flow rate of 3.2 m3 /s. The mixture exits the turbine at 380 K, 0.11 MPa. For adiabatic operation with negligible kinet..
a solar thermal engine operating between 20 degrees celsius and 200 degrees celsius has efficiency equal to one-half of
a iron has a bcc crystal structure an atomic radius of 0.124 nm and an atomic weight of 55.85 gmol. compute and compare
a vortex tube has an air inlet flow at 20 degrees celsius 200 kpa and two exit flows of 100 kpa one at 0 degrees
Water drips at the rate of 5 drops per second from a leaking tap. Determine the vertical distance between two consecutive drops after the lower drop has attained a velocity of 3 m/s.
Estimate the mass of the gas in the tank in kg assuming the gas behaves as an ideal gas. If the gas warms up to 35 deg C as it sits in the sun all day, what would the pressure rise to?
a helicopter pilot drop supplies to a stranded avalanche survivor located on the east side of the a mountain that
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