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A cylinder fitted with a piston containing 1kg of Refrigerant 134a at 20C and 90% vapor quality is attached to a line flowing Refrigerant 134a. The total force on the piston is proportional to the cylinder volume squared. The valve is now opened and Refrigerant 134a flows into the cylinder until the mass inside is three times the initial mass and the final pressure in the assembly is 900 kPa at which point the valve is closed. Determine the work done during this process, in kJ.
energy addition in polytropic process in this case the initial air pressure is 750 psia and 750 f. the polytropic
a stationary radar operator determines that a ship is 19 km south of him. an hour later the same ship is 16 km
a fluid is held between a lower place of temperature t1 and an upper place of temperature t2 the distance between the
some aircraft component is fabricated from an aluminum alloy that has a plane strain fracture toughness of 35 mpa ?m.
a uniform solid sphere of radius r 0.480 m and mass m 17.0 kg turns counterclockwise about a vertical axis through
carbon dioxide gas enters a pipe at 3.1 mpa and 520 k at a rate of 1.71 kgs. the co2 is cooled at a constant pressure
a company owns a refrigeration system whose refrigeration capacity is 200 tons 1 ton of refrigeration 211 kjmin and you
the elevator an express elevator is to carry passengers from ground level to a lobby where they can catch elevators to
What tightening torque should be used if the connection is permanent and the fasteners are lubricated? What portion of the external load is taken by the bolts? By the members?
An autoclave contains 1000 cans of pea soup. It is heated to an overall temperature of 100°C. If the cans are to be cooled to 40°C before leaving the autoclave, how much cooling water is required if it enters at 15°C and leaves at 35°C? The speci..
air at 358c 1 atm and 50 relative humidity enters a dehumidifier operating at steady state. saturated moist air and
a particle travels along the path y2 4x with a constant speed of v 4ms. determine the x and y components of the
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