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Consider a liquid-vapor mixture of ammonia and water in equilibrium at 25°C. If the composition of the liquid phase is 50 percent NH3 and 50 percent H2O by mole numbers, determine the composition of the vapor phase of this mixture. Saturation pressure of NH3 at 25°C is 1003.5 kPa.
At the bottom, an opening allows water to drain out at a rate, in lbm/s, that is proportional to H(t), the instantaneous height of water in the barrel, in ft: rate of water leaving from bottom = 9*H(t) .
Compute and tabulate the bearingsof the sides of a regular pentagon (polygon with five equalangles), given the starting direction of sideAB.
determin the force in memebers de, hg and he of the trees and state if the members are in comperhemsion
The lever BCD is hinged at C and attached to a control rod at B. Determine the maximum force P that can be safely applied at D if the maximum allowable value of the reaction at C is 250 lb.
A vertical curve is designed for 90 km/h and has an initial grade of +2.5% and final grade of -1.0 %. the PVT is at station 3+480. It is known that a point on the curve at station 3+440 is at elevation 75m. What is the stationing and elevation of the..
Design a concrete column of 14 ft high to support a dead load of 80 kips and a live load of 200 kips? f'c= 6,000 psi fy= 60,000 psi
The uniform 30 kg bar OB is secured to the accelerating frame in the 30 degree position from the horizontal by the hinge at O and roller at A. if the horizontal acceleration of the frame is a equals 20 m/s^2
A car has the following characteristics: weight = 18000 N; cross-sectional area = 2.5 m^2, drag coefficient = 0.5; rolling friction coefficient = 0.02. The energy content of gasoline is 3.5E10^7 Joules/Liter.
The service live load is three times the dead load. The 4-in leg contains a single line of 7/8 inch diameter bolts, and the 6 inch leg contains a double gage line of 7/8 inch diameter bolts.
A horizontal pre-stressing force of 500kN is applied to rectangler beam. the beam has a depth of 500mm and a width of 250mm. the force is applied at a distance of 80mm below the x-x axis. what is the stress along the top edge and the bottom edge caus..
given moisture contents of 5%, 9%, 14%, 22% and 25% with corresponding weights of 3.1, 3.42, 3.78,3.85, 3.77 lbs. of the compacted soil. (specific gravity =2.7)(compaction test using compaction mold of 1/30 ft^3).
(i) Determine the flow rate through pipe B. Discard minor losses and assume the water temperature to be 150C. (ii) Show that the flow is fully rough and thus the friction factor is independent of Reynolds number.
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