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Chemical Engineering Questions and Answers January 16, 2018

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A reservoir with a strong pressure maintenance operation produces oil. Data obtained are:k = 1 0 0 mD h = 5 0 ft re = 1 0 0 0 ft , rw = 0 . 2 5 ft , o = 2 . 0 Cp , Bo = 1 . 3 rb / stb , Pe = 2 5 0 0 psi, Pwf = 1 8 0 0 . Calculate:a . flow rate if there is no skin effectb. flow rate if Pskin = 2 0 0 psic. Flow rate if Pskin = - 2 0 0 psid. Flow

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Problem 2 . Suppose that a nuclear reactor has 1 0 0 0 neutrons at generation 0 . At generation 1 , the reactor operated under three different conditions, as listed in the table below, with an external neutron source emitting 1 0 0 neutrons per generation. A . Provide tables with the number of neutrons per generation for the three cases ( Excel
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Answer all questions: 9 . 1 0 . 1 1 . 1 2 . 1 3 . 1 4 . 1 5 .
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e) The change of Gibbs free energy (AG) for the reaction below at 25C is -541.6 kJ/mol. 2Ag2S (s) + 302 (9) 2Ag2O (s) + 2502 (g) If given : AHF (kJ/mol) -32.6 o 2Ag2S (s) 302 (g) 2A320 (s) 2SO2(g) -31.0 -296.9 i. Find entropy change (AS) for the reaction at the same temperature. (4 ii. State weather the reaction happened spontaneously or not
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DRILLING ENGINEERING Question 2: (11 marks) a. Based on the International Association of Drilling Contractor guideline, describe the 7-3-7 bit. b. A 1.02 specific gravity brine mud will be used to drill 8 5/8 shaly sandstone hole section from 7,000 to 8,500 ft depth using 700 bbls mud with 50 psig overbalanced. If the formation pressure gradient

Your goal is to design a process to change a natural gas stream ( F = 1 kmol / hr; 9 0 % CH 4 , 5 % C 2 H 8 , 3 % C 3 H 1 0 , 2 % CO 2 ) from ( T = 3 0 C , 1 bar ) to ( 3 0 C , 1 0 bar ) . Develop a feasible process superstructure and write the mathematical formulation describing the superstructure. State the Assumptions

Row = 25 Assumptions:-Naturalgasbillis$200.000-Naturalgascostis$0.0216/kWh. - The engine can vary its output down to 50% after which is must be shut down. Assumptions:-Naturalgasbillis$200.000-Naturalgascostis$0.0216/kWh. - The engine can vary its output down to 50% after which is must be shut down
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a. Considere una solucin de agua a la que se le agrega cido carbnico. Encuentre la fraccin de bicarbonato (HCO3-) presente en la solucin de agua en funcin de [H+]. Asegrese de considerar todas las posibles especies de carbonato [cido carbnico (H2CO3); bicarbonato (HCO3-); y carbonato (CO32-)] en su clculo. b. Resuelva la fraccin de bicarbonato a

in addition to the instructions in the problem statement, please label the flowchart and list all unkowns and assumptions. Thank you. Bonus Question (25 Points) Recovery and processing of various oils are important elements of the agricultural and food industries. For example, soybean hulls are removed from the beans, which are then flaked and
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Find the best distillation sequence using: 1 - Heuristics method. 2 - the vapor load method for the following four components separation. Then Compare both methods.
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1 0 . 1 1 . For each of the physical systems in Table Q 1 0 . 1 1 , explain whether it can experience the dynamic responses shown in Figure Q 1 0 . 1 1 for a step input ( not necessarily at t = 0 ) . The systems are to be considered idealized; in other words, the mixing is perfect, final element and sensor dynamics are negligible unless otherwise
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3. Ethanol is to be produced from ethylene and water using commercial catalyst in a packed bed flow reactor (PFR). The reaction is reversible as follows: 9) Calculate equilibrium constant (K) at 450 K temperature. b) Calculate the conversion achieved at 450K for a feed stream containing 40% ethylene and 60% HO if equilibrium (XA) is reached. (The
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PLEASE HELP ME CREATE THE CODE FOR EACH QUESTION ON STATA: Question 1 In order to evaluate the impact of the increased minimum wage on employment, it is important first to check that NJ did in fact adhere to the new minimum wage law, and that PA did not. This can be done by observing the distribution of starting wages in each state, before and

Pick out the system with minimum boiling azeotrope at 1 atm. Benzene - toluene Ethyl alcohol - water Hydrochloric acid - water All ( A ) , ( B ) and ( C )

Raoult's law is applicable to the Ideal solutions Real solutions Mixture of water and alcohol Non - ideal gases

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help me please please Name of the followng compounds according to IUPAC Rules. please Write down The Reagents A and B used and the mechanism in the following two Reaction steps. A B
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Especially when periodic maintenance checks are not performed, steam traps often fail to close completely and so leak steam continuously. Suppose a process plant contains 8 0 0 leaking traps ( not an unrealistic supposition for some plants ) operating at the conditions of part ( a ) , and that on the average 1 5 . 0 % additional steam must be fed
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2. (50) Prepare (or find) an iron predominance diagram for all of the iron species (Fe, FeS, Fe2(SO4)3,Fe2O3,Fe3O4) for 1000C(1273K). What are your suggested gas compositions (SO2,O2) needed for directly reduced iron according to this diagram
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Consider the flow of a Newtonian fluld in a vertical concentric annulus under steady conditions as shown in Figure below. A constant pressure gradient is imposed in the positive z-direction while the inner rod is stationary. a) Show that the governing equation is (List your assumptions, ps: modifled pressures are used!): rdrd[r(drdvz)]=LPoPL a)
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How much energy is needed to raise the temperature of 1 mole of alumina from 0 oC to 1 2 0 oC , given that the specific heat capacity of alumina is 0 . 9 0 7 J K - 1 g - 1 ( independent of temperature ) ?

Part A\ Ethanol (C_(2)H_(5)OH) melts at -114\\\\deg C . The enthalpy of fusion is 5.02k(J)/(m)ol . The specific heats of solid and liquid ethanol are 0.97(J)/(g)K and 2.3(J)/(g)K , respectively. How much heat (kJ) is needed to convert 25.0g of solid ethanol at -135\\\\deg C to liquid ethanol at -70\\\\deg C ? Ethanol (C2H5OH) melts at 114C. The
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3. We want to pump water from a large reservoir through a packed tower at a rate of 1.15m3/min. Water enters the tower from the bottom and leaves at the top as shown in figure and the top of the tower is open to the atmosphere. The pipeline consists of 30m of 3in. sch. 40 commercial steel pipe with three 90 oelbows and two fully open gate valves
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4 A concurrent tunnel dryer is used to dry a new food product carried in 10 cm by 10 cm by 1 cm trays. Moisture removal from the product occurs from the upper surface only. The heated air is 100C, and has been heated from ambient conditions at 25C and 40% RH at a rate of 1000 m 3 /min. Problems 684 CHAPTER 12 Dehydration The product leaves the

Practice Problems: Name the following
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9 . MAP stands for: - A ) Monoammonium Phosphate - B ) Monoammonium Potassium - C ) Di - Ammonium Phosphate - D ) Di - Ammonium Potassium 1 0 . Potassium Chloride is not recommended for: - A ) Chloride - sensitive crops - B ) Sulfur - deficient soils - C ) Nitrogen - deficient soils - D ) Phosphorus - deficient soils 1 1 . The Ostwald process

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Generate a simulink model for a balloon with an inlet with a flow in Qin. The Qin has a triangular wave signal function f ( t ) with a wave period of 6 seconds. The peak occurs at the first sec and declines to 0 or no flow by the second sec . no flow occurs for the next 4 seconds. At the sixth sec the function begins to increase to 1 0 0 once more

Leutolin is produced in a cylindrical stirred tank bioreactor. Lab scale tank diameter = 1 2 cm , lab scale impeller speed = 6 0 0 rpm , Htank / Dtank = 1 . 0 , Dimpeller / Dtank = 0 . 3 3 , liquid density = 1 0 0 0 kg / m 3 , viscosity = 1 . 0 cP . The tank is scaled to 1 0 , 0 0 0 L . a . Estimate the impeller and tank diameters ( in m ) for the

pls expain the answer in brief I. W . Kendrick and R . Sato have studied the production function Y = A 0 e 0 . 0 2 1 t K L ( a L 2 3 + b K 2 3 ) 3 2 where A 0 , a , and b are positive constants. Find the elasticity of substitution K L between K and L .
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2. (BONUS) Seepage takes place beneath a concrete dam as shown. The soil beneath the dam is a fine silty sand with hydraulic conductivity of 4104cm/s. Calculate the rate of ae (m3/sec) through the dam. The dam is 500 meters long. (+5%)
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A glass melting furnace is burning ethene in pure oxygen ( not air ) . The furnace operates at a fuel - oxygen equivalence ratio of 0 . 9 and consumes 3 0 kmole / hr of ethene, with LHV = 4 7 1 6 1 kJ / kg . Answer the followings: a . Determine the energy input rate based on the LHV of the fuel. b . Determine the oxygen molecule consumption in

Verify that: C ( x , t ) = B D t 2 exp ( - x 2 4 D t ) Is a solution to Fick's Second Law. Note that B and D are constants.
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FX 1 9 4 . Monocotyledons Dicotyledons ( dicots )

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2 7 2 . How would you design an experiment to investigate the effect of particle size and concentration on the separation efficiency of a microfiltration system? Discuss the selection of membrane materials and particulate suspensions, the experimental setup, the procedure for measuring filtration efficiency and fouling, and the methods for

Examine the figure below. Atomic percent magnesium Weight percent magnesium (i) State the phases that will be present in each stage if the following process path is followed. (For each stage, select all phases that apply.) 1. 500C,20wt%Mg 2. 500C,80wt%Mg 3. 200C,80wt%Mg 500C,20 wt %Mg L 500C,80 wt %Mg L 200C,80wt%Mg L
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Complete the mechanism for the reaction of pentan - 2 - one with methoxide. Draw curved arrow notation. Add lone pair electrons and nonzero formal charges. ( i ) Add lone pair electrons and nonzero formal charges.
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2. Grignard additions to carbonyl compounds are especially useful because they can be used to prepare alcohols. Show reactions between the following Grignard reagents and carnonyl reactants indicating the type of alcohol formed. i. Phenylmagnesium bromide and formaldehyde [5 marks] ii. Ethylmagnesium,bromide and acetaldehyde [5 marks]
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Q 2 . ( 2 5 marks ) A mixing tank has a transmitter that measures the molar concentration ( in m o l m 3 ) of A in the outlet stream ( C ) . The total volume of the liquid in the tank is 1 m 3 with density as 3 0 0 k g m 3 . These are constants throughout the process. C m is the concentration measured by the transmitter and the transmitter can be
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I need accurate answer without using automation tools or plagairised answers 1 1 4 . What is the International Atomic Energy Agency ?

A measuring cylinder of height L is initially three quarters full of water. Over time, evaporation of liquid causes the liquid level in the cylinder to fall. It can be assumed that the evaporation rate is controlled by diffusion of water vapour with diffusivity DA, diffusion being considered to take place through stagnant air from the surface of
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Choose which answer gives the best rendition of commonly accepted choices for techniques of explosion protection: Select one: A . Ex ' p ' , Ex ' pl ' , Ex ' v ' , Ex ' m ' , Ex ' n ' B . Ex'I' C . Ex ' e ' , Ex ' n ' , Ex ' d ' , Ex ' q ' D . Both a ) and d )
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La ecuacin de velocidad de Michaelis-Menten para una enzima sujeta a inhibicin competitiva es 0=mx[S]m+[S]V0=Vmx[S]Km+[S] Comenzando con el mismo punto de partida de Michaelis-Menten, 0=2[ES] (1)V0=k2[ES] (1) una nueva definicin de enzima total como [Et]=[E]+[ES]+[EI] (2)[Et]=[E]+[ES]+[EI] (2) y las definiciones de y IKI proporcionadas, derivan la

2 7 . Super phosphate fertilizers are produced by treating phosphate rock with _ _ _ _ acid, which increases the _ _ _ _ of phosphorus to plants by converting it into a more soluble form. - Options: sulfuric, availability, hydrochloric, concentration, nitric, mobility 2 8 . In the Ostwald process for nitric acid production, the catalytic oxidation

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What is the energy for vacancy formation (in eV) in silver, given that the equilibrium number of vacancies at 700C is 2.6x 10^23 /m3? The atomic weight and density (at 700C) for silver are, respectively, 107.9 g/mol and 9.5 g/cm3. (k = 8.62x10^-5 eV/atom-K; NA= 6.022x10^23 atoms/mol

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Problem 1 . Suppose that a nuclear reactor has 1 0 0 0 neutrons at generation 0 . At generation 1 , the reactor operated under three different conditions, as listed in the table below. A . Provide tables with the number of neutrons per generation for the three cases ( Excel sheet ) . B . Using software, plot the total number of neutrons in each
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Please identify the type of defects for A , B , G , D , and E , respectively. ( 1 0 pts ) Vacancy Substitutional Impurity Interstitial Impurity Self - Interstitials Dislocation Grain Boundary
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[1] Calculate the change in the entropies of the system and the surroundings, and the total ch ange in entropy, when the volume of a sample of argon gas of mass 21g at 298K and 1.5 0 bar increases from 1.20dm3 to 4.60dm3 in (a) an isothermal reversible expansion, (b) an isothermal irreversible expansion against pex=0, and (c) an adiabatic
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Which command would you run if you need to open the console that will allow you to configure a static IP address on a computer? a. NCPACPL. b. MSINFO32, c. GPEDIMSC, d. SYSDM.CPL e. None of the above, f. DXDIAG, g. MSRA, h. MSTSC
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Range of hydrogen gas constant volume thermometer is _ _ _ _ _ _ _ _ _ C . - 1 0 to 2 0 0 to 1 0 0 1 0 0 - 5 0 0 4 0 0 - 1 0 0 0

Problem 1. Consider the following first order dynamic system described by the differential equation 5dtdn(t)+n(t)=0.35u(t)+d(t) where n(t),u(t) and d(t) are respectively the output, manipulated input and disturbance of the process in deviation variable form. The initial condition of the system is n(0)=0 The system is subjected to a rectangular
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I found this on Chegg, It is similar to a question I have but I am stuck on part b and how to do it in excel using eulers method. can u show me with graphs. Q1. A group of enterprising chemical engineering students are planning on scaling the production of beer to cover the increasing needs of the Engineering student functions using a 2000L

2 . Explain the concept of solvent activity and its significance in pharmaceutical formulation. - How do ionic strength and ion pairing affect the activity coefficients in electrolyte solutions? - Discuss the influence of temperature and pressure on the excess Gibbs energy of mixing. - Explain how the Flory - Huggins theory is used to estimate

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QUESTION 3 In this module ( PRC 3 6 0 1 ) you have learned about various types of valves commonly utilised in the field of process control. There is an extremely wide variety of categories of valves available for implementation in manufacturing systems. List and discuss commonly used valves in manufacturing processes. [ 1 4 Marks ]
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Question 2 (4 marks) A water solution (at 25C ) has a pH of 7.7 , and it contains 40mg/L calcium and 12mg magnesium. When the water reaches chemical equilibrium with the atmosphere (390 ppm CO2 in atmosphere), calculate the alkalinity and total hardness. Express your answers in mg/L as CaCO3 equivalent. - Henry's constant for CO2 at
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Temperature measurement range of iron - constantan thermocouple is 0 to 8 7 0 C . It can be used to measure sub zero temperature, because at lower temperature Emf produced is very low of the order of microvolt Embrittlement of iron occurs Rusting of iron takes place Both ( B ) and ( C )

In a long cylindrical wire with a thermal conductivity of k, and radius R, there is a uniform heat generation rate per unit volume G, due to the resistance during electrical transmission. The heat is removed by using a cooling fluid flowing outside over the surface at a temperature of T and the average heat transfer coefficient is h. For the
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In solvent extraction, what parameter is adjusted to favor the distribution of a compound into the extract phase? A ) pH of the aqueous phase B ) Ionic strength of the extract phase C ) Temperature of the system D ) Polarity of the solvent

Specific gravity of a liquid cannot be measured by a / an Anemometer Specific gravity bottle Pycnometer Hydrometer

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Determine the fraction of benzene that can be stripped in a complete - mix reactor equipped with a diffused - air aeration system. Assume that the following conditions apply:
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For an unstable equilibrium of a floating body ( where , M = metacentre. ) M is above G M is below G M & G coincide None of these

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HP 0 1 Nsogbu nke 5 : na - ach si ike ime mmeghachi omume gaseous A - B na reactor tubular d ugbu a nke nwere 5 0 tubes parallel 4 0 ft ogologo na 0 . 7 5 - in . n'ime dayameta. Nnwale n g nke bench enyela nzaghachi mmeghachi omume mgbe niile maka mmeghachi omume mb a d ka 0 . 0 0 1 5 2 s - 1 na 2 0 0 \ deg F na 0 . 0 7 4 0 s - na 3 0 0 \ deg F .

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An agitator of diameter D requires a torque T to rotate at a constant speed N in a liquid of density and viscosity . If an agitator of 2 0 7 m m diameter rotating at 2 3 r e v s in water requires a driving torque of 1 N m . Calculate the corresponding speed ( in rev / s ) and the torque ( in N m ) required to drive a similar agitator of 6 7 7 m m
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please, I can't encourage chat - gpt answer properly 2 2 4 . What is a quark - gluon plasma?

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2 7 6 . How would you design a laboratory experiment to evaluate the performance of a forward osmosis ( FO ) membrane for water purification? Discuss the selection of the membrane material and feed solution composition, the experimental setup, the procedure for measuring water flux and solute rejection, and the methods for analyzing the data to

1 . 2 3 The densities of liquid and vapor methyl ether in g c m - 3 at various temperatures are as follows: \ table [ [ t C , 3 0 , 5 0 , 7 0 , 1 0 0 , 1 2 0 ] , [ P 1 , 0 . 6 4 5 5 , 0 . 6 1 1 6 , 0 . 5 7 3 5 , 0 . 4 9 5 0 , 0 . 4 0 4 0 ] , [ v , 0 . 0 1 4 2 , 0 . 0 2 4 1 , 0 . 0 3 8 5 , 0 . 0 8 1 0 , 0 . 1 4 6 5 ] ] The critical temperature of
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Transport Phenomena: In which form is the Navier - Stokes equation used? A ) Mass balance B ) Energy balance C ) Momentum balance D ) Heat balance

3.31 A closed system of mass 3kg undergoes a process in which there is a heat transfer of 150kJ from the system to the surroundings. The work done on the system is 75kJ . If the initial specific internal energy of the system is 450k(J)/(k)g , what is the final specific internal energy, in k(J)/(k)g ? Neglect changes in kinetic and potential
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