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In a gas mixture, which component will have the higher partial pressure-the one with the higher mole number or the one with the larger molar mass?
A variable-order reaction A-->B has the following rate expression: R(a) = -kC(a)/(K+C(a)) where k = 5mg/L-hr and K=40mg/L The reaction is to take place in a batch reactor. The initial concentration is 450 mg/L
If the BOD5 of a municipal wastewater is 310 mg/L and the BOD U is 340 mg/L, determine the BOD reaction rate constant (base e). What would be the 3 day 30°C BOD Assume, temperature coefficient = 1.047.
A beam of rectangular cross section 300mm by 100mm sitsupright and has a moment of inertia of 225 X 10-6m4 and a max bending moment of 67.5KNm. Determine themax value of bending stress in the beam.
the wind reaches a speed of 27.8 m/s in a storm. calculate the force acting on a 1m x 2m window facing the storm. the window is in a high-rise building. the air density p= 1.2 kg/m3.
A rancher has 1200 ft of fencing to enclose a double paddock with two rectangular regions of equal areas. find the maximum area that the rancher can enclose.
A trapezoidal channel having side slopes of 2 horizontal and 1 vertical discharges 14.35 m3/s of water at a velocity of 1.0m/s. The channel lining has a roughness coefficient, n = 0.013. Find the dimensions of the channel for the least expenditure..
Water with a static pressure of 1.96kN/M2 flows through an 800 mm diameter pipe. A pitot tube pressure gage in this pipe reads a pressure of 5.88 kN/M2. How do you determine the volume flow rate (Q) of the water? (Q = 1.40 M^3/sec, V=2.79 M/sec)
Should the soil be compacted at the dry of optimum or at the wet of optimum condition in order to minimize the swelling potential? Briefly explain the reason for your answer.
Another way to treat acid mine drainage is to add limestone at the beginning of a narrow AMD stream to precipitate the metals. The first order rate constant is 10/day. Assume the stream is 3ft wide and 1ft deep
Classify the following soils using the given grain size distribution (ASTM system) and Atterberg Limits data:
A square steel bar, 38 mm on each side, is used as a beam and subjected to bending of 460 N.m. Calculate the maximum bending stress.
Given a mean earth radius of 20,906,000 ft, and an observation latitude of N 33 degrees, what is the arc distance of one second of longitude and one second of latitude?
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