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The distribution coefficient of styrene distributed between ethylbenzene and ethylene glycol at 25 degrees C is .19 mass fraction in the ethylene glycol phase per mass fraction in the ethylbenzene phase. One hundred grams of pure ethylene glycol is added to 120g of a mixture containing 75wt% ethylbenzene and 25% styrene and the resulting blend is allowed to equilibrate. How much styrene transfers to the ethylene glycol phase, assuming that ethylene gylcol and ethylbenzene are immiscible?
Draw block diagrams of the unit operations necessary to treat the following wastes to effluent levels of BOD5 = 200 mg/L, SS = 100 mg/L, P = 5 mg / L (required for discharge into a sanitary sewer).
An open channel with a trapezoidal configuration with side batters 1V:3H is to be designed to carry 1.0m^3/s with a bedslope of 0.0065. The channel is lined with concrete with manning's n of 0.011.
To provide knowledge and practice AutoCAD software package for engineering activities.
A telephone wire 5 mm in diameter is suspended between telephone poles spaced 50 m apart. If the wind velocity is 100 km/h and the air is at 2 degrees C, 1 atm, determine the horizontal force (in N) the wire exerts on the poles.
A rapid-mixing basin is to be designed for a water coagulation plant, and the design flow for the basin is 4.0 MGD (million gallons per day). The basin is to be square with a depth equal to 1.25 times the width.
The car's position is defined by the position vector, where . The image below shows the system projected onto the x-y plane. What are the car's velocity and acceleration vectors at this position
What must be the radius of the steel wire if it is to stretch the same distance as the aluminium wire, so that the two wires maintain equal lengths after the masses are attached?
A normally consolidated clay layer is 4 m thick (one way drainage). From the application of a given pressure, the total anticipated primary consolidation settlement will be 80mm. What is the average degree of consolidation for the clay layer.
Account for chemical reactions, groundwater flows, streams, precipitation, evapotranspiration. Indicate any assumptions that can be made to simplify your equation.
A large tank is used to calibrate the reading from a flow meter. Measurements of the system weight as a function of time are made. Water enters the tank vertically from the flow metering system at a speed of 20 ft/sec through a 1.5 in.
The incremental cash flow between alternatives Z1 and Z2 (Z2 has the higher initial cost). Use an AW-based rate of return equation to determine the incremental rate of return and which alternative should be selected
It is desirable to produce a copper-nickel alloy that has a minimum noncold-worked tensile strength of 390 Mpa and a ductility of at least 40% elongation. Is such an alloy possible If so, what must be its composition
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