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Chemical Engineering Questions and Answers January 16, 2018

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Question in Chemical Engineering Please Give Correct answer im preparing please otherwise I will dislike 2 2 7 6 1 2 7 8 .

Question in Chemical Engineering Please Give Correct answer im preparing please otherwise I will dislike 2 2 9 7 1 2 9 9 .

3) The liquid phase, first order reaction AB+Cwithk=3.25105min1 is to be carried out in a constant-volume batch reactor under isothermal conditions. The reactor is well mixed. Fstimate the time (hours) necessary to reduce A to 1.0% of its present value. Answer: t=26.3h
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An automobile engine has four belts each showing the identical wearout effects with a Weibull shape parameter of 1.34. However, their scale parameters are 2500, 3400, 8000, and 6100 operating hours. If the automobile is new, determine the probability of a belt failure on a 72-hr trip? If the car with the belts has been in use for 4000 hr, what is

A liquid storage tank shown in below figure has 2 inlet streams with mass flow rates w1 and w2 and an exit stream with flow rate w3. The cylindrical tank has a diameter of 2 m. The liquid has a density of 800 kg/m3 . Normal operating procedure is to fill the tank using constant flowrates of w1 = 120 kg/min, w2 = 100 kg/min and w3 = 200 kg/min.
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Se desean calentar 1 0 , 0 0 0 k g de tolueno desde 2 6 C hasta 4 9 C con xileno Orto que pasar de 7 0 C hasta 3 7 C . Qu cantidad de xileno se requerir ? Hacer el diagrama del proceso, los c lculos deben de ir completos y con sus unidades correspondientes.
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the integration of theoretical principles in chemical engineering serve as the foundational framework for innovation and problem - solving within the field? Discuss the pivotal role of theories such as thermodynamics, kinetics, and transport phenomena in understanding and manipulating chemical processes. Explore how theoretical models aid in the

1. Statistical data gathered for Toyota cars that are returned for mechanical failure within their first year of usage show that Engine, Sensors and Breaks are the three main sources for the mechanical failures. Toyota's data provides the following information for: E={ Engine failures } B={ Break failures } S={ Sensor problems }
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The reaction A products was studied and the values found for its concen - tration over time are presented in the table below: Determine the rate equation for this reaction using the direct differential method.
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Question in Chemical Engineering Don t Answer If u Don t know Compulsory I will give multiple dislikes 1 9 3 .

2. The investment cost for a 120,000,000Jb/yr plant is estimated at $15,000,000. The working capital is $3,000,000. From the unit ratio material balance, the energy balance, and an estimation of the labor, the following costs ner nound of nradunt wore dotarmined What must be the selling price if the return on the investment before taxes of the
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3. Cumene decomposition is proposed to follow the mechanism (i.e., series of elementary steps) below: ki Step 1: C + * C-* (fast) k-1 k2 Step 2: C-* B-* + P (slow) K-2 k3 Step 3: B-* B + * (fast) k-3 Note that * refers to a catalytically active site on a solid heterogeneous catalyst, C is cumene, B is benzene, and P is propylene. The 2nd step is
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Problem 7. BrCH2-CH?Br (DBE) contaminated an aquifer which is a drinking water supply at a concentration of 200 mg/L. The DBE is transformed to HOCH2-CH2OH (75%) and CH2=CHBr (25%) in a parellel reaction. The groundwater temperature is 5* C and has a pH of 7.5. Using the data that is given in the Table, estimate the concentrations of the three
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5. Suspensions of clay sized FeOOH in 0.001 M NaCl were adjusted over a range of pH with NaOH and HCl, then shaken and allowed to settle in test tubes. One day later, light transmittance through the undisturbed supernatant was measured. The results were as follows: pH 4.18 4.64 5.06 5.88 6.88 7.28 7.75 8.54 8.74 Transmittance (%) 9.4 21.4 41.9

4- In an electrostatic precipitator (ESP) system, dielectric constant is 6 and local field strength is 400kV/m. Collecting area to flowrate ratio is found to be 0.05s/m. Calculate the individual and overall efficiency of the ESP (in \%) for the particle data given in Table 2 below by using the mixed-flow equation (0=8.851012C/vm and :1.8105kg/ms).
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Question in Chemical Engineering Please Give Correct answer im preparing please otherwise I will dislike 2 2 5 9 1 2 6 1 .

A gas-turbine power plant operating on the simple Brayton has a pressure ratio of 7. Air enters the compressor at 0 C and 100 kpa. the maximum cycle temperature is 1500 K. the compressor has an isentropic efficiency of 80 percent, and the turbine has an isentropic efficiency of 90 percent. Assume constant properties for air at 300 K with Cv= 0.718

Question 2 3 of 2 5 0 1 View Policies Show Attempt History Current Attempt in Progress Incorrect. Propose an efficient synthesis for the following transformation: The transformation above can be performed with some reagent or combination of the reagents listed below. Give the necessary reagent ( s ) in the correct order, as a string of letters (
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Question in Chemical Engineering Don t Answer If u Don t know Compulsory I will give multiple dislikes 4 8 2 .

Question In Chemical Engineering, Don't Give AI Answer 2 2 .

ethene and chlorine react together to form dichloroethane via main reaction. However some of the ethene and chlroine also react to form trichloroethane via a side reaction. The feed to the reactor contains 1 . 2 5 kmol of C 2 H 4 per kmol of cl 2 . the overall conversion of chlorine is 1 0 0 % and the selectivity of C 2 H 4 Cl 2 over C 2 H 3 Cl 3

Question in Chemical Engineering Please Give Correct answer im preparing please otherwise I will dislike 2 7 7 6 1 7 7 8 .

The equilibrium data of adsorption of methane on activated carbon at 2 9 8 K is given below. ( a ) Determine the adsorption equilibrium constant using the Langmuir isotherm and Freundlich isotherm. ( b ) Which model follows close to the experimental data? ( c ) Estimate the loading at 2 4 . 0 bar.
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The difference between total carbon and fixed carbon of coal will be minimum in case of Lignite Bituminous coal Anthracite High temperature coke ( V . M < 0 . 5 % )

Donner le ( s ) produit organique ( s ) majoritaire ( s ) de la r action suivante. Justifier votre r ponse . Donner le ( s ) produit organique ( s ) majoritaire ( s ) de la r action suivante. Justifier votre r ponse . Donner le ( s ) produit organique ( s ) majoritaire ( s ) de la r action suivante. Justifier votre r ponse . Donner le ( s )
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A l 2 O 3 is sputtered with a deposition rate of 1 7 Angstrom / s on the substrate crossection shown below. What would be the deposited film profile after 4 minutes?
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Question in Chemical Engineering Don t Answer If u Don t know Compulsory I will give multiple dislikes 2 0 0 .

Question in Chemical Engineering Don t Answer If u Don t know Compulsory I will give multiple dislikes 2 2 8 .

Using a 20 cm long C18 bonded HPLC column filled with 5m size particles and a mobile phase consisting of 20% methanol in water, two pesticides P1 and P2 elute at 9.0 and 9.2 minutes respectively with corresponding base peak widths of 30 and 30.7 seconds respectively. The mobile phase solvent peak elutes at 2 minutes. Calculate: the retention

Write a Matlab code ( using any root - finder algorithm of your choice: regula - falsi, fsolve, or fzero ) to find the normal boiling point ( temperature in \ deg C ) of Methanol, which is between 5 0 \ deg C and 1 0 0 \ deg C . You may look up the Antoine coefficients ( for Methanol ) for the saturated vapor pressure. Andcheckyouranswerby

Using the equation for time averaged flow rate during peristalsis, given below, derive an expression for the case of (i) fully occluded flow (ii) no peristalsis Q=8a4P(1+232)(12)27+a2c1+2324(11612) where a is the mean radius, =b/a,b is the peristalsis amplitude, c is the wave speed, is the viscosity, is the wavelength, and P is the pressure drop
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Question 2 ( 2 points ) ) = ( 1 3 8 . 2 0 6 g m o l to give a p H of 1 0 . 1 5 ? Suppose that H 2 C O 3 has K a l = 4 . 1 0 - 7 , K a 2 = 5 . 1 0 - 1 1 .
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Question in Chemical Engineering Don t Answer If u Don t know Compulsory I will give multiple dislikes 1 9 0 .

Report for wrong answers Consider the Assertion (A) and Reason (R) given below Assertion (A): The curves y=ax3 and x2+3y2=c2 form orthogonal trajectories. Reason (R.) : The differential equation of the second curve is obtaining from the differential equation of the first by replacement of dxdy by dydx The correct answer is (A) Both A and R are
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The reversible gas phase decomposition reaction, A 2 D is being carried out at a constant temperature and pressure of 6 7 C and 2 0 2 . 6 kPa respectively. The feed consists of pure A and the concentration equilibrium constant, K c , at 6 7 C is 0 . 1 m o l L - 1 . Determine the CSTR volume necessary to achieve 8 0 % of the equilibrium conversion.
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Highly Important that questions will be worked out on excel. Show working if necessarcy Thanks You have been tasked to analysis the HMF content in a number of different honey samples. The following is the method which was carried out: The HPLC system was made up of a Waters 717 plus autosampler, a Waters 600 pump, a Waters column heater module and
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Plot the sintering pressure of a pore with a radius between 1 0 - 1 0 0 0 n m with increments of 5 n m . Assume an interfacial energy of 1 J m 2 and with and without an applied pressure of 5 0 MPa.
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A fluid of known density is used in two manometers - one sealed-end, the other across an orifice in a water pipeline. The readings shown here are obtained at the same time. The density of water is 1,000kg/m3, the density of the manometer fluid is 2,650kg/m3, and g is 9.81m/s2. If h2 is 35cm, answer the following questions: a) What is the pressure
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3 . Discuss the use of calorimetry in measuring excess enthalpies and interpreting activity coefficients. - How do association and dissociation phenomena in solutions affect the calculation of activity coefficients? - Explain the significance of the Poynting effect in the context of fugacity and phase equilibria. - Explain the principle and

Question in Chemical Engineering Don t Answer If u Don t know Compulsory I will give multiple dislikes 4 7 0 .

(Diels- Alder reaction) Help! Do letters A and B. Predict the final products. show all chemicals/transitional phases and steps. Also explain so i can understand please and thank you. Diels - Alders [B
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The Bakun hydropower plant has an installed electrical capacity of 2700MW. The actual electricity output was 40% of installed capacity on an annual basis. The investment, operation \& maintenance as well as decommissioning costs of the hydropower plant are given in Table 1. Table 1: The investment, operation \& maintenance as well as
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A solution of ethanol (CH3CH2OH) and methylcyclohexane (C7H14) is made by mixing 4.3g of ethanol and 6.1g of methylcyclohexane and placed in a sealed container at 55C. (a) Using the vapour pressure data given below, calculate the partial pressures of each substance and the total pressure above the solution, assuming ideal behaviour. [3 marks ] (b)
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Question in Chemical Engineering Don t Answer If u Don t know Compulsory I will give multiple dislikes 1 7 0 .

What is the phase rule equation given by Gibbs? A ) F = C - P + 1 B ) F = C - P + 2 C ) F = C - P - 1 D ) F = C + P - 2

Consider a J - T cycle for the liquefaction of methane, as shown in the following Figure. The methane enters the heat exchanger at 8 0 oF and 1 , 5 0 0 psia, and expands to 1 4 . 7 psia. ( 2 0 marks ) a . Calculate the fraction of methane entering the system that is liquefied using an ideal heat exchanger ( no warm end T and no pressure drop ) and
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The state of 1(1bm) of steam is changed from saturated vapor at 20 (psia) to superheated vapor at 50(psia) and 1000(F). What are the enthalpy and entropy changes of the steam? What would the enthalpy and entropy changes be if steam were an ideal gas? The state of 1(1bm) of steam is changed from saturated vapor at 20 (psia) to superheated vapor at
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clear scientific answers only. thank you A 5cm diameter naphthalene ball is placed in a stagnant air at 40C and 1atm. Bulk concentration of naphthalene in air is negligible. The diffusivity of naphthalene in air is 6106m2/s. Vapor pressure of naphthalene at 40C is 0.15atm. Density of naphthalene is 1.0g/cm3, Molecular weight of naphthalene is
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please dont use chat gpt AI 1 0 3 0 .

Problem 1 . ( 2 points ) Recall the Peng - Robinson equation of state ( P + a ( T ) v ( v + b ) + b ( v - b ) ) ( v - b ) = R T . Given parameters a and b , derive critical pressure, critical molar volume, critical temperature and critical compressibility factor for the Peng - Robinson fluid. Does the critical compressibility factor depend on
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Question In Chemical Engineering, Don't Give AI Answer 1 6 .

Question In Chemical Engineering, Don't Give AI Answer 5 0 .

Question In Chemical Engineering, Don't Give AI Answer 6 3 .

1.6 Prove that Eqs. (1.4) are correct. dAxdAydAz=lxndAn=lyndAn=lzndAn
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a) Assume that you can choose three different monochromatic light sources emitting at different wavelength of emission. Which wavelength would you choose to generate most of the colors shown on the diagram. b) Assume equal number of photons with wavelength of 520nm and 580nm is incident on your eye. What would be the perceived color? c) Assume
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Acetone is to be recovered from an aqueous waste stream by continuous distillation. The feed contains 1 0 mol % acetone. Acetone of at least 9 5 mol % purity is wanted, and the aqueous effluent must not contain more than 1 mol % acetone. The feed will be a saturated liquid. Devise a control system for the distillation column. The flow to the
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please provide plots In this problem, you will design a controller for an oven. The control objective is for the oven temperature T to track TTref a desired temperature Tref. The dynamics of the oven are modeled by mcT=LkAT+q where the output y=T is the oven temperature T (relative to ambient temperature), the input u=q is the supplied heat, and
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a ) The size fractions of a sereen feed, oversize and undersize stream sample are tabulated below. The oversize represents 6 2 . 5 % of the foed mass flowrate. i . Draw the Tromp curve for the separation ii . Determine the separating size iii. Calculate the imperfoction c ) Discuss the criferia for assessment of a centrifuge.
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Consider the horizontal, laminar flow of a Newtonian fluid of viscosity = f() = = 5 102 Pas that is subjected to a constant pressure gradient of 300 Pa/m in a pipe of circular cross-section (radius R = 5 cm). Performing a momentum balance on an annular fluid element (length dz and thickness dr) leads to the differential equation (DE) d dr (rrz) =

Question in Chemical Engineering Don t Answer If u Don t know Compulsory I will give multiple dislikes 4 8 0 .

4 . 4 8 . In the production of a bean oil, beans containing 1 3 . 0 w t % oil and 8 7 . 0 % solids are ground and fed to a stirred tank ( the extractor ) along with a recycled stream of liquid n - hexane. The feed ratio to the extractor is 3 k g hexane / k g beans. The ground beans are suspended in the liquid, and essentially all of the oil in the
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The evaporation capacity of a descending film evaporator is 1 5 k g water / h . Such a system consists essentially of a heating unit which heats a liquid flowing in the form of a film, and a condenser in which the water vapor generated in this process is condensed. Evaporation occurs when a liquid at its boiling point undergoes to low - pressure
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( B ) Calculate the degree of conversion at 5 0 0 K and 5 , bar. at equilibrium state, for the production of C H 3 O H , which is prepared according to the reaction: C O ( g ) + 2 H 2 ( g ) C H 3 O H ( g ) . If the reaction is satisfied with a stoichiometric mixture of C O and H 2 , determine the composition of equilibrium mixture at 5 0 0 k and 5
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Pyrometry refers to the measurement of temperature With the mercurial thermometer upto 3 5 0 C Directly Which is of higher magnitude All ( A ) , ( B ) & ( C )

Relationship between absorption / evolution of heat at the thermocouple junctions and the current flow in the circuit is given by _ _ _ _ _ _ _ _ _ effect. Peltier Thomson Seebeck None of these

Question in Chemical Engineering Don t Answer If u Don t know Compulsory I will give multiple dislikes 2 0 5 .

13. (4 pts) A 3-stage compressor is to be designed to compress a gas from 20 psia to 160 psia. The optimum output pressures from each stage of the compressor are [A] 40 psia, 80 psia, 160 psia [B] 67 psia, 113 psia, 160 psia [C] 80 psia, 120 psia, 160 psia [D] 50 psia, 100 psia, 160 psia
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4 Table 1. Zeta potential values of protein A solution at different pH values Correlation Coefficient pH values 2.1 2.8 3.4 4 4.5 5 5.7 6.3 8.2 A a. Solutions of an A protein at different pH values were prepared and the zeta potential values of the solutions were obtained by electrophoretic light scattering spectroscopy method. In which two pH
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Routh stability method uses _ _ _ _ _ _ _ _ _ loop transfer function. Open Closed Either ( A ) or ( B ) Neither ( A ) nor ( B )

What is the phase rule equation given by Gibbs? A ) F = C - P + 1 B ) F = C - P + 2 C ) F = C - P - 1 D ) F = C + P - 2

An aqueous solution containing 6 0 % N a 2 S 2 O 3 and 1 % soluble impurities is diluted with water and fed to a crystallizer where it is cooled in order to crystallize N a 2 S 2 O 3 - 5 H 2 O . The crystals carry 0 . 0 5 k g of solution ( excluding impurities ) per kg of crystals. The free water present in the adhering solution is removed on
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6 . Assuming that equilibrium concentration of oxygen in the aqueous medium is 1 . 5 x 1 0 g mol / cm and k value is 0 . 0 0 9 cm / s , concentration of oxygen 1 x 1 0 g . mol / cm , diffusivity of Or is 0 . 5 x 1 0 cm / sec and order of reaction = 2 and k = 0 . 8 5 x 1 0 cm / g . mol. s ) . Estimate the limiting process for Os transport

2 4 . Thermodynamic consistency tests are essential for validating vapor - liquid equilibrium data and ensuring it adheres to the _ principle. 2 5 . The _ coefficient model is an advanced approach for predicting phase equilibria in mixtures with non - ideal behavior. 2 6 . In the limit of low concentrations, the fugacity of a solute in a solution

corrosion Q: Determine the pressure of hydrogen required to stop corrosion of iron immersed in a deaerated 0.1 m FeCl 2 solution at pH=3 .Assume Fe 2+ = 1.0, E o Fe/Fe +2 = -440 mv

Question 2 (20 marks) A rapidly mixed tank consists of a treatment unit used to disinfect a solution. The solution enters the 2000 m tank at a rate of 0.4 m/s. The pollutant contains 7.94 CFU per liter and has no 0 mg/l of chlorine. The treatment unit uses a stock solution containing 750 mg/L which is released a rate that will cause the chlorine
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Question in Chemical Engineering Don t Answer If u Don t know Compulsory I will give multiple dislikes 2 0 1 .

Question in Chemical Engineering Please Give Correct answer im preparing please otherwise I will dislike 2 3 7 9 1 3 8 1 .

(25) A liquid mixture contains 25 moles of A and 20 moles of B in a bucket. Gibbs free energy (G) of this mixture is 200J. Addition of 5 moles of A to the mixture makes G=220J. Addition of 5 moles of B (without adding A) makes G=230J. Gibbs free energy of 10 moles of pure A and 10 moles of pure B are 42J and 53J, respectively. (a) What is the
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Question in Chemical Engineering Don t Answer If u Don t know Compulsory I will give multiple dislikes 1 8 0 .

Water flows through a horizontal system comprising a Venturi flow meter in series with a circular pipe (see Fig. 1). The cross-sectional areas of the Venturi inlet and the throat are A1 and At, respectively. Heat is supplied to the water in the cylindrical pipe at a rate of 486kW. The inlet temperature of the water in the system is T1 and the
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Compute the steady-state momentum flux yx in Pa when the lower plate velocity is V1=8ft/s and the top plate velocity is V2=3ft/s (see figure), both velocities in the positive x direction, the plate separation Y is 2cm, and the fluid viscosity is 0.9cp. [4 marks]
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Kindly answer the question in great detail. Methane and oxygen react in the presence of a catalyst to form formaldehyde. In a parallel reaction, methane is oxidized to carbon dioxide and water: CH4+O2CH4+2O2HCHO+H2OCO2+2H2O The feed to the reactor contains equimolar amounts of methane and oxygen. Assume a basis of 100mol feed/s. (a) Draw and label
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Question in Chemical Engineering Please Give Correct answer im preparing please otherwise I will dislike 2 2 6 7 1 2 6 9 .

Question in Chemical Engineering Please Give Correct answer im preparing please otherwise I will dislike 2 7 6 9 1 7 7 1 .

For the following transfer function model. G(s)=(s+4)(2s+1)8(s+2)e5s Put this model in the standard gain/time constant form and linearize it (time delay term) using Taylor Series to answer the following questions: a) What is the value of the steady state gain? b) What is/are value(s) of Zeros? c) What is/are value(s) of Poles? d) Based on your
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Considering the phase diagram of steel What is the carbon content ( in percentage ) of the Austenite phase at Point A ? Approximate your answer, if needed.
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Gas Adsorption [ 1 0 pts ] a . Based on the shape of the adsorption isotherm ( specific amount gas adsorbed vs . relative pressure ) , compare the strength of [ 1 ] intermolecular interactions and [ 2 ] gas - adsorbent interactions. Explain. b . Describe an analysis method that could be used to get quantitative information from the adsorption
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I need accurate answer without using automation tools 1 4 . Explore the influence of human factors ( e . g . , fatigue, complacency ) on the effectiveness of safety permit systems in chemical engineering workplaces.

Determine the theoretical oxygen demand (ThOD in mg O2 per mg of compound) for the following compounds: a) Oleic acid (C18H34O2) b) Ethylene Glycol (C2H6O2) c) Glucose (C6H12O6) d) Acetic Acid (CH3COOH) e) Octanol (C8H18O) f) Glutamine (C5H10N2O3) g) Biomass (C10H18O5N2) h) What would be the COD of a solution containing the following mixture (per

Non - metallic diaphragm used as pressure sensor in instruments is generally made of Teflon Synthetic rubber Bakelite Thick paper

3. Consider the one-dimensional random walk we discussed in class. Assume 32 particles start at the origin. At each time step, assume exactly half of the particles at each site move right (+) and half move left (). Determine where all of the particles are (i.e., how they are distributed) after each of the first 5 time steps. In other words, after
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How many unique products are expected from the reaction shown?
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Question in Chemical Engineering Please Give Correct answer im preparing please otherwise I will dislike 2 2 9 2 1 2 9 4 .

50 kg of toxic material is spilled uniformly across a canal. The canal is rectangular with a bottom width of 4.5 m and a depth of flow of 1.5 m. The discharge in the canal is 16 m3/s, and the longitudinal dispersion coefficient is 7 m2/s. a. Is a lagrangian or eulerian framework appropriate for this water quality scenario? b. How soon after the

3 1 7 . How would you design an experiment to investigate the effect of particle size and concentration on the separation efficiency of an ultrafiltration system? Discuss the selection of membrane materials and particulate suspensions, the experimental setup, the procedure for measuring separation efficiency and fouling, and the methods for

Please make it fast 7 1 .

The following equation is used in protein separations, where small particles are packed in a column and a protein suspended in a liquid is passed over the particles. d e l C m d e l t + v d e l C m d e l Z + 6 d p D p ( d e l C S P d e l r ) r = R = D d e l 2 C m d e l Z 2 Where: \ table [ [ C m = protein concentration mobile ( g m L ) , Z =
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