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The value of Henry's constant for CO2 gas dissolved in water at 290 K is 12.8 MPa. Consider water exposed to atmospheric air at 100 kPa that contains 3 percent CO2 by volume. Under phase equilibrium conditions, the mole fraction of CO2 gas dissolved in water at 290 K is
(a) 2.3 ×10-4
(b) 3.0 × 10-4
(c) 0.80 × 10-4
(d) 2.2 ×10-4
(e) 5.6 × 10-4
A motorcycle sprocket on the rear wheel has a diameter of 24 cm, and trhe driver sprocket has a diameter of 4.0 cm. The driver sprocket shaft and rear axle are 60 cm apart.
Determine the min coefficient of static friction between tires and the road surface so that the 1.5Mg car does not slide as it travels at 80km/h on the curved road. Neglect the size of the car.
A laboratory space has a heat gain of 3 tons with a sensible heatfactor of 0.7. The indoor design conditions are 78 F at 40% RH. Theoutdoor air design conditions are 95 F at 50% RH. The coolingequipment has a fixed air flow rate of 350 cfm/ton of coo..
Two rectangular clarifiers(sedimentation basins), each 30 ft long, 15 ft wide, and 10ft deep, settle a combinedtotal of 0.40 mgd following alum coagulation. The effluent channelshave a total weir length of 60ft in each basin
The 3.5mg engine is suspended from a 500 kg spreader beam and hoisted by a crane which gives it an acceleration of 4m/s^2 when it has a velocity of 2m/s. determine the force in chains AC and AD during the lift.
The frame ACD is hinged at A and D and is supported by a cable that passes through a ring at B and is attached to hooks at G and H. If the tension in the cable is 1125 N (thus 1125 N in section BG and 1125 N in section BH)
Water enters and leaves a pump in pipelines of the same diameter and approximately the same elevation. If the pressure on the inlet side of the pump is 30 kPa and a pressure of 500 kPa is desired for the water leaving the pump
It rains 3.0 in. on a 20.0 acre watershed. What is the volume of rainfall excess if 30% of the watershed area is a lake and infiltration on the soil is estimated at 1.0 in. What is the total volume of runoff
1.a rectangular concrete channel is 3 m wide and 2 m high. the water 20 deg celsius in the main channel is 1.5 m deep
List the densities in solid, liquid and gaseous state. Also compare the densities for each of them and calculate the density it will have in any ideal gas state.
A container of volume 0.04 m3 contains a mixture of saturated water and saturated steam at a temperature of 250oC. The mass of the liquid present is 9 kg. Find the total mass, quality of steam, specific volume, specific enthalpy, and specific inte..
A curve of radius 300 ft and e = 10% is located at the section of an existing rural highway, which restricts the safe speed at this section of the highway to 40% of the design speed.
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