What practical application arises from the wave-particle duality of electrons? Explain
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Coke can be converted into CO in following reaction CO2(g) + C(s) -> 2CO(g). A coke that contains 84% carbon by mass and the balance noncombustible ash is fed to a reactor with a stoichiometric amount of CO2. The coke is fed at 77 oF, and the CO2 enters at 400 oF. Heat is transferred to the reactor in the amount of 5800 btu/lbm coke fed. The gaseous products and the solid reactor effluent (the ash and unburned carbon) leave the reactor at 1830 oF. The heat capacity of the solid is 0.24 btu/(lbm.oF)
Calculate the percentage conversion of the carbon in the coke. (Provide your answer in decimal format, NOT percentage format!)
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How much coal must be burned each day to produce enough energy to generate the steam to run the turbines to produce enough electricity to meet the daily power requirements of a city of 500,000 people? Note: If the average house hold has 4 people and the average annual electricity consumption for a residential utility customer is 10,932 kilowatthours (kWh), an average of 911 kWh per month. Write a full lab report with objective, theory of coal burning to produce steam to generate electricity, flow chart of the complete process, all calculations, discussion and conclusion.
In: Other
This is set of homogeneous and gas phase reactions: A-->B-->C . The reaction scheme is carried out in a constant volume, ideal batch reactor at constant temperature. The first reaction is first order with respect to A with a rate constant k1 while the second reaction is zero order with a rate constant k2. Initially, the reactor contains only A at a concentration CA0. a) Derive expressions for the concentration of A, B, and C as a function of reaction time t
b) If k1 = 0.5 h−1, k2 = 3 mol/m3·h, and CA0 = 30 mol/m3, find the optimal time to reach a maximum yield of the desired product B, where yield is defined as YB/A = CB/CA0. What is the corresponding value of the maximum yield at this point in time? What constraints (if any) need to be placed on k1, k2, and/or CA0 in order to observe a maximum in the yield?
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1) Why is the resistivity of the filter cake (the solid) higher than resistivity of filtrate, for after doing the filtration drilling fluids?
2) Should drilling fluids be high in resistivity or low? and why?
In: Other
in a uranyl contaminated aquifer, there is sulfate,
nitrate, and ferrihydrite. use thermodynamics calculations to
predict the sequence of electron accepting processes in that
aquifer.
After what terminal electron acceptor(s) and before
what terminal electron acceptors would uranyl be reduced? In order
to stimulate uranyl reduction
In: Other
An adult inhales approximately 12 times per minute, taking in about 500 mL of air with each inhalation. Oxygen and carbon dioxide are exchanged in the lungs, but there is essentially no exchange of nitrogen. The exhaled air has a mole fraction of nitrogen of 0.75 and is saturated with water vapor at body temperature, 37°C. If ambient conditions Professor Christina Tang, [email protected] 2 are 25°C, 1 atm and 50% relative humidity, determine what volume of liquid water (mL) would have to be consumed over a two hour period to replace the water loss from breathing.
(a) How much water would have to be consumed on an airplane where the temperature, pressure and relative humidity are 25°C, 1atm and 10%, respectively.
In: Other
In: Other
1. Describe a medical or biomedical problem that has been diagnosed treated by nano science. Answer what, who, where, how and when they made the discovery.
2. Indicate how you experimentally verify or demonstrate the special properties of diamond compared to the properties of graphite and coal?
In: Other
Are all liquid crystal polymers? What are thermotropic and lyotropic liquid crystals? What is the difference between nematic, smectic and cholesteric liquid crystals? Are those three the only possible liquid crystal phases?
In: Other
What are four reasons that BOD5 is tested at a WWTP?
In: Other
Three candidates showed up for an interview. Of all the candidates, only one was appropriated for the job. The first candidate arrived promptly and was dressed professionally. She spoke articulately and seemed a good fit for the organization. The next candidate was also on time, but his dress shirt was stained, his tie was crocked, and he seemed to struggle with the standard interview questions. His performance during the interview was not as impressive as the first candidate’s performance. The final candidate, dressed T-shirt and ripped jeans, arrived a full hour past the scheduled interview time. Because of her tardiness did not interview her.
Q1. Which of the following inferences can the reader draw according to the passage?
A. Preparing for a job interview can compensate for inappropriate business attire
B. A wide variety of applicants for this position ensure the company will find a good candidate
C. Tardiness for a job interview will be interpreted as laziness and disorganization.
D. Being on time for a job interview and dressing appropriately is important to securing.
Q2. Which of the following sentences from the passage is a fact?
A. Because of her tardiness, we did not interview her.
B. Of all the candidates, only one was appropriate for the job
C. His performance during the interview was not as impressive as the first candidate
D. She spoke articulately and seemed a good fit for the organization.
Q3. Which of the following is the writer’s purpose for writing this passage?
A. To change
B. To stereotype
C. To explain
D. To analyze
In: Other
Specify the number of degrees of freedom for the following alloys:
(a) 95 wt% Ag–5 wt% Cu at 780°C
(b) 80 wt% Ni–20 wt% Cu at 1400°C
(c) 44.9 wt% Ti–55.1 wt% Ni at 1310°C
(d) 61.9 wt% Sn–38.1 wt% Pb at 183°C
(e) 2.5 wt% C–97.5 wt% Fe at 1000°C
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Describe three different separation processes and identify the physical/chemical/biological principle on which the separation is based.
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Determine the pOH (to two decimal places) of the solution that is produced by mixing 5.83 mL of 4.19×10-2 M Mg(OH)2 with 918 mL of 3.52×10-3 M SrH2.
In: Other