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Nitrogen is compressed in a piston-cylinder starting with a volume of 1 m3 and a temperature of 27oC to a final state where the temperature is -23oC. If the specific entropy change is -0.28kJ/kgoK what is the final volume?
a long flat bar has the s-n diagram. the bar is 6in wide by .5 in thick. it has a 2 in hole in the middle.a what is the
a girl riding a bicycle along a level road at 12 ms decides to speed up. she does 8 kj of work while moving 250 m along
Consider the ideal regenerative Rankine cycle for a power plant (shown below), where there is no heat loss or pressure drops in the piping, the turbine and pumps are isentropic, the heat loss in open feed water heater (FWH) can be neglected, there ar..
consider a concentric circular-tube annulus with outer diameter 2.5cm and inner diameter 1.25cm in which air is flowing
a ceramic bidet failed catastrophically in normal use causing serious lacerations to the person concerned. the facture
an incompressible newtonian fluid flows steadily between two parallel plates. the bottom plate moves to the left at a
A piston-cylinder assembly initially contains 4 mol of substance X in vapor phase at 0.8 bar and 373 K. The vapor is compressed isothermally and reversibly until the first droplet of liquid forms.
It is desired to purchase a steel tank to store 20,000 US gallons of liquid propane; design pressure is 250 psig, and design stress is 20,000 psi. For steel, SG = 7.9. What will be the weight of metal in the shell (excluding foundation, valves, manho..
the portion of the truss shown represents the upper part of a power transmission line tower. for the given loading
A closed rigid tank of volume 3m^3 contains a two-phase liquid-vapor mixture of H2O at 110C with a quality of 34.5%. The tank then receives energy by heat transfer until the water becomes a saturated vapor. Determine the final pressure and temperatur..
oxygen is diffusing in a mixture of oxygen-nitrogen at 1 std atm 25degc. concentration of oxygen at planes 2 mm apart
A closed system consisting of 8.25 lb of a gas undergoes a process during which the relation between pressure and volume is pV^n = constant. The process begins with p1 = 18 lbf/in^2 , v1 = 1.25 ft^3 /lb and ends with p2 = 53 lbf/in^2 , v2 = 0.5 ft^3 ..
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