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1.A completely mixed flow reactor, with a volume of V and a flow rate of Q, has a zero-order reaction, dA/dt = k, where A is the material being produced and k is the rate constant. Derive an equation that would allow for the direct calculation of the required reactor volume.
2.A closed system of 0.123kg undergoes a frictionless, quasi-static process along the path PV=C from 100kpa to a final state where the volume is twice the initial volume. During the process 8140 N-m of work is done by the system. What is the final specific volume (m^3/kg) of the system ?
Assuming we are still in a world with only discrete investment choice, i.e., option A, option B, etc., describe a realistic investment problem where none of the environments discussed apply without some reframing.
The design wind speed is 15 mph at T=10C and p=0.9 bar. The efficiency of the turbine is n=20% meaning that 20% of the kinetic energy in the wind can be extracted. estimate the power in watts that can be produced by the turbine.
A community has a current population of 15,000. 10 years ago, the population was 12,500 and the community has a declining growth rate with a saturation population of 22,000.
Suppose a watershed in Athens, Georgia has 25 acres pasture (CN=70) and 50 acres wooded (CN=55). Determine the excess rainfall (in inches) and runoff volume (cubic feet) assuming the design rainfall is 25-year, 24-hour.
The company Eco-Safe is adding pollution control equipment to its process and reducing emission of pollutants. The annual waste disposal cost of the current process is $130,000 and the annual operating cost is $600,000
Ozone is a conservative indoor air pollutant produced by photocopy machines at a rate of 10 mg/h per machine. The owners of CopyCat reproduction services want to open a new
A four- lane undivided multilane highway ( two lanes in each direction) has 11- ft lanes and 5- ft shoulders. At one point along the highway there is a 4% upgrade that is 0.62 mi long.
A truck is hauling a 300-kg log out of a ditch (20 degree incline) using a winch attached to the back of the truck. Knowing the winch applies a constant force of 2500N and the coefficient of kinetic friction between the ground and the log is 0.45
A dam spillway is to be tested using kinematic similitude (Froude scaling) with a 1:20-scale model. The model flow has an average velocity of 0.7 m/s and a flow rate of 0.06 m3/s.
A borehole at a site reveals a soil profile comprising 6 m deep fine sand layer overlying a 9 m thick clay layer, which in turn overlies weathered bedrock. The groundwater table is located at a depth of 4 m from the ground surface.
Two remediation options are being considered for a contaminated land area formerly used for industrial operations. Option 1 involves removing all of the contaminated soil over a two-year period at a cost of 2.2$ million per year
For a ternary system, three components are present; temperature is also a variable. What is the maximum number of phases that may be present for a ternary system, assuming that pressure is held constant?
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