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Chemical Engineering Questions and Answers January 16, 2018

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4. Aluminium sulfate is used in water treatment and in many chemical processes. It can be made by reacting crushed bauxie (aluminium ore) with 77.7 weight percent sulfuric acid. The bauxite ore contains 55.4 weight percent aluminium oxide, the remainder being impurities to produce crude aluminium sulfate containing 2000lb of pure aluminium
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A 3,000 L fermenter that is 1.5 m in diameter with an operating liquid volume of 2,000 L will be used to ferment yeast. The reactor has 4 baffles. Assume one six-blade turbine impeller (0.6 m diameter) will be operated at 200 RPM and the fermenter will be aerated at 1,000 L/min. (a) Calculate the ungassed power requirement (b) Calculate the gassed

Part 1/6 points] QA.1, assume a dataframe df with 100 rows and 10 columms, Which of the opeions below can best describes the output of the following print slatemen? print(df,1loc[:3,:]) Q.a. M yen ar seyuestea to depict the relationship between two numerical variables, what is the most appropriate plot to use? QA.4: Which of the following
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La polica est utilizando mangueras contra incendios para dispersar a una multitud rebelde. Las mangueras contra incendios suministran 0,01 m3/s de agua a una velocidad de 30 m/s. Un miembro de la multitud ha cogido la tapa de un cubo de basura y la utiliza como escudo para desviar el flujo. Lo sostiene verticalmente, de modo que el chorro se

Question in Chemical Engineering Please Give Correct answer im preparing please otherwise I will dislike 2 2 3 2 1 2 3 4 .

1 0 . For a counter - current extraction process, if the inlet concentration of solute is 3 kg / m \ ( ^ 3 \ ) and the outlet concentration is 1 kg / m \ ( ^ 3 \ ) , the concentration change is _ _ _ _ _ kg / m \ ( ^ 3 \ ) . - a ) 1 - b ) 2 - c ) 3 - d ) 0 . 5

Please solve. A bioreactor is represented by the following model that uses the Monod kinetics: dtdx1=(D)x1 where x1 is the biomass concentration, x2 is the substrate concentration and D is the dilution rate. The specific growth rate depends on the substrate concentration as follows: =0.12+x20.53x2 In this system, we are interested in controlling
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How does the presence of non - idealities impact the phase equilibrium in a multicomponent distillation column?

What role do diffusion limitations play in heterogeneous catalysis on porous supports?

We are going to simulate a gas cooled reactor using TRISO fuel. In this reactor we use burnable poisons as a passive safety feature. The burnable poison we have chosen is boron carbide. What type of coating should we use on the burnable poison to keep it from reacting with other materials in the reactor.

Research azeotropic distillation and extractive distillation

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Mass Transfer and Surface Kinetics of Cellular Glucose Uptake. Cells continually take up glucose as a nutrient for a variety of cellular functions. Glucose must diffuse from the bulk extracellular space to the cellular surface. We can approximate a typical cell as a sphere of radius R for the purposes of mass transfer analysis. We will assume
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Exercise 3 The dependence of the mixing enthalpy of the benzene (1) + 2,2-dimethylbutane (2) system on the composition at 25 C can be approximated by the ratio HE /(Jmol1) = 3630 x1 x2. Based on this relationship, determine the heat associated with adding 2 moles of benzene to an infinite amount of 2,2-dimethylbutane. I answered this question

The SI unit of temperature is: a ) Fahrenheit ( \ deg F ) b ) Celsius ( \ deg C ) Correct c ) Kelvin ( K ) d ) All of the above???.

8 0 . What is the purpose of a flash point in chemical engineering?

Referring to the p H speciation diagram for N H 4 + shown below, which of the following statements is false?a . The p K a value for N H 4 + is equal to approximately 9 . 3 . b . The concentrations of N H 4 + and N H 3 are equal at approximately a p H of 9 . 3 . c . The diagram represents a case where the total ammonium species concentration equals
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Answer part 6 and 7 ! ! The answers aren't 1 1 7 . 7 1 and 1 0 8 . 7 8
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Question in Chemical Engineering Please Give Correct answer im preparing please otherwise I will dislike 1 8 6 4

Consider an interstitial solid solution with gold as solvent atoms, calculate the largest radius of the solute atom without causing internal tension using the hard - sphere model. ( 1 4 pt )
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8 0 . What is the purpose of a flash point in chemical engineering?

Problem: Heat exchanger has a cold fluid contain a mixture of gases have mole fractions as follows 0.2 ethanol, 0.6 water, 0.15 ethylene and 0.05 ethane. the inlet temperature of this cold fluid equals to = - 97.97 C and the outlet temperature = 122.6 C. The Cp of the mixture is 3.41 kJ/kg.k. the flow rate of the cold fluid is 869.4 kmol/h. The

2. Consider the following two molecules with approximately the same size: . H I-0 H - H H H 0.1110 CH3 (a) Why are these molecules considered the same approximate size if one has 5 atoms, CHCI, and the other has 8 atoms, CH2CH3? (b) Copy the structure for the CH CI molecule and draw its molecular dipole moment, indicating the regions of partial
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don't solve this question otherwise I will give you 5 0 dislike
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take standard conditions (20, viscosity 1E-3pa) and in SI units please 1. Water flows into the 2 inch-diameter galvonizod iron pipe shown below at 0.3ft3/s. If the pipe branches into two 1-inch diameter pipes ABD and ACD, which are 4ft and 6ft long repectively. (a) determine the flow rate through each pipe in m3/s, neglecting minor losses, (b)
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A 0.0575kg loe cube at -30.0\\\\deg C is placed in 0.517kg of 35.0\\\\deg C water in a very well insulated contain dass. The heat of fusion of water is 3.33\\\\times 10^(5)(J)/(k)g , the specific heat of ice is { ( :2090(y)/(k)g+k) }, and the 4190(J)/(kg*K) . The system comes to equilibrium after all of the ice has melted. What is the final
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There is a rocket that is launched upwards with an upward force F. In this rocket, 2 balls are connected to the top. The connection of the two balls to the rocket and the other ball is via two springs (see figure). Calculate the force that the bottom plate must withstand so that ball B does not fall through the plate. Given is F, K1,K2, Lo1,Lo2,
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Question in Chemical Engineering Please Give Correct answer im preparing please otherwise I will dislike 1 8 7 4

1. A first-order irreversible reaction: AB Is taking place in a continuous stirred-tank reactor (CSTR) with a volumetric flow rate of Umin. The reaction rate constant is 0.02minA1 and the feed concentration of A is 1mol What is the volume of the reactor required to achieve 90% conversion? 2. Consider a gas-phase reaction: A+2BC that takes place in
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asap please (15\%) Saturated steam at 1atm is discharged from a turbine at a rate of 1500 kg/h. Superheated steam at 400C and 1atm is needed as a feed to a heat exchanger; to produce it, the turbine discharge stream is mixed with superheated steam available from a second source at 500C and 1atm. The mixing input operates adiabatically Calculate
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( 2 8 points ) In a closed heat exchanger, water is supplied to the state - 3 at 5 bars with the quality 1 and leave at T 4 = 1 8 0 C ( state - 4 ) , and T 5 = 3 2 0 C ( state - 5 ) . As shown in the figure, wasted hot Nitrogen is supplied to the state - 1 with the temperature of 5 5 0 K . This N 2 leaves at state - 2 . The 9 2 % rate of heat
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Compound A undergoes a reversible isothermal isomerization reaction in the gas phase. The consumption reaction of A to produce B is second order and the reaction is reversible of B to generate A is of order 1 . 5 . the equilibrium constant for the reaction is = 4 . 5 0 . 5 / 0 . 5 . In a PFR with a equimolar feed of A and an inert ( i ) at 1 5 atm

In hydrometallurgical zinc production, refining processes are carried out in solution prior to electrolysis. What do you do to remove iron, copper and nickel in solution? explain in detailwith reactions

Vinyl chloride is transported as a liquid at its vapor pressure. The ambient temperature is 2 5 C , at which the vapor pressure is 5 1 . 5 a , and the density is 9 1 1 k g m 3 . Consider a rail car containing 8 8 , 5 0 0 k g of vinyl chloride that is involved in a derailment accident. Evaluate the following scenarios. Scenario 1 : The derailment
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A gas mixture consists of 30% carbon dioxide (CO2) and 70% nitrogen (N2) by volume. The mixture flows through a pipe of length 20 meters and a diameter of 0.1 meters at a flow rate of 0.05 m3/s. The diffusion coefficient of CO2 in N2 is 0.16 cm2/s, and the viscosity of the gas mixture is 2.3 x 10^-5 kg/ms. Determine the mole fraction of CO2 at the

A sheet of BCC iron 2mm think was exposed to a carburizing gas atmosphere on one side and a decarburizing atmosphere on the other side at 725. After having reached steady state, the iron was quickly cooled to room temperature. the carbon concentrations at the two surface of the sheet were determined to be 0.012 and 0.0075 wt%. compute the

Q1 Cone-and-Plate Viscometer: Apply Navier-Stokes Equation 10 Points Refer to graph attached, fined the viscosity, mu, of the fluid. Enter the value mu (in g/(cms) ) below
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5. Immobilised cells of a genetically improved strain of Brevibacterium lactoferme ntum are used to convert glucose to glutamic acid for production of MSG (monosodium glutamate). The immobilised cells are unable to grow, but metabolise glucose according to the equation: C6H12O6+1.5O2+NH3C5H9O4N+CO2+3H2O A feed stream of 4% glucose in water enters
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Question in Chemical Engineering Please Give Correct answer im preparing please otherwise I will dislike 1 8 6 0

SO2 is stored in a gasometer at a pressure of 1.2 at (abs) and 20C, from which 1 kg/s is transported to a fixed-bed reactor. The SO2 transport pipe has a diameter of 2, type 40, with a length of 100 m. The fixed-bed reactor contains vanadium raschig rings as a catalyst [rings with a length of 10 mm, an outer diameter of 10 mm and an inner diameter
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don't solve this question otherwise I will give you 5 0 dislike
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i need 1 1 7 8

Process Safety Management I need detailed answer please Explain the effect of a chemical's toxicity, exposure time, and exposure concentration on its TLV-TWA. (15 pts)
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Q1-Multiple choice questions: 1 Of tbe three polymer types, which wae is the most impartant comimercially: (b) thermosets, or (c) elanomers? 2. Buna-S is also known as : (a) Teflon, (b) PTEF, (c) SBR (d) Polyacrylates 3. These polymers cannot be recycisd: (a) Thermoplastics, (c) Elastomers, (d) All polymers? 4.One of chanacteristic properties of
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A liquid mixture containing 40.0 wt% n-octane and the balance n-decane flows into a tank mounted on a balance. The mass in kg indicated by the scale is plotted against time. The data fall on a straight line that passes through points (t = 4 min, m =135kg) and (t=10 min, m= 211 kg) Estimate the volumetric flow rate of the liquid mixture. L/min What

Please do not skip any step solution, and please write the solution step on one piece of paper without use type by using the computer. This is because I scare I will not understand the concept. Thank you very much. Question 3 (8 marka) The following question concerns the Period 2 elements. (a) Write the conjugate acid for the followings Coni. Acid
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There is a shell and tube heat exchanger (1-20) that uses hot water from the tubes for heating an oil that flows from the shell side. Each copper tube has an internal diameter of 20 mm, an external diameter of 24 mm, and a length of 3 m per step. Water enters each tube at 87C, at a rate of 0.2 kg/s, and exits at 27C. The oil is heated from 7C to

2) An incompressible fluid with a specific gravity of 0.90 flows through the venture meter given in the figure with volumetric flow rates between 0.004 m/s and 0.045 m/s. Calculate the range in pressure difference (P1-P2) required to measure the given volumetric flow rates using a venturi meter (C-0.98). D = 0.1 m (1) incompressible fluid SG =
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Two chambers are separated by a partition. One of the chambers is evacuated, and the other has a volume of 1 m 3 and contains steam at T = 5 0 0 C and P = 1 0 bar. The partition is removed, allowing the gas to expand into the evacuated chamber. No heat transfer occurs with the surroundings. The final steam pressure is P = 4 bar. Find: a . The mass
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Yandaki kar t rmal tip tank reakt rde yat k n ve yat k n olmayan ko ullar i in toplam k tle denkli ini ifade eden e itlikleri t retiniz . ( K tle ak h zlar : w 1 , w 2 , w; K tle oranlar : x 1 , x 2 , x ) ( 2 0 puan ) .
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Question In Chemical Engineering, Don't Give AI Answer 6 8 .

Carbon from a gaseous phase is to be diffused into pure iron (a- Fe) at 900C. If the surface concentration is maintained at 0.4 wt% C, what will be the concentration 2.1 mm from the surface after 8 hours? The diffusion coefficient for carbon in a- Fe at 900C is 1.7x 10^-10 m2/s. Use four decimal places. For z-0.45, erf(z)=0.4755; For 2-0.50.

Question In Chemical Engineering, Don't Give AI Answer 7 7 .

5.81 In Exercise 5.18, \\\\gamma _(1) and \\\\gamma _(2) denoted the lengths of life, in hundreds of hours, for components\ of types I and II, respectively, in an electronic system. The joint density of Y_(1) and Y_(2) is\ f(y_(1),y_(2))={(((1)/(8))y_(1)e^(-1x_(1)+n_(2)),x_(1)>0,y_(2)>0.),(0, elsewhere. ):} 5.81 In Exercise 5.18, Y1 and 2 denoted
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Question in Chemical Engineering Please Give Correct answer im preparing please otherwise I will dislike 1 8 4 8

If you steal steal a solution from another post I will report your account and downvote you. Original work only. Question 2 A water pump driven by an 800 W electric motor is used to pump water from the ground level to a tank at the rate of 20000 L/hour. Water is being discharged into the tank at 10 meters above the ground; this is the maximum rise
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The number of protons in the nucleus of an atom is called: A ) Atomic number B ) Mass number C ) Isotope D ) Electron configuration

6 . The concept of an ideal stage assumes _ _ _ mixing within the stage, instantaneous _ , and the outgoing streams are in _ _ _ with each other. - a ) partial, mass transfer, disequilibrium - b ) complete, equilibrium, equilibrium - c ) minimal, heat transfer, phase contact - d ) no , diffusion, steady state

A rougher bank has 4 cells connected in series. The feed to the circuit has a mass rate of 1 0 0 0 t h r and a grade of 2 % copper. The recoveries and grades for the individual cells down the bank is presented in the table below: Based on the data provided, estimated cumulative recovery and grade for the rougher cell. \ table [ [ , Rougher 1 ,
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Below is the crystal structure of portlandite (Ca(OH)2). Red, blue, and white balls indicate oxygen, calcium, and hydrogen atom, respectively. Red plane indicates (100) plane. (a) Explain why the experimentally measured intensities of XRD become weaker as dspacing gets smaller. Below is the crystal structure of portlandite (Ca(OH)2). Red, blue,
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- Use non-linear regression to find and in the equation below: Y1=a0+a1x11+a2x21 rA=kCACBi=1NY1=Na0+a11=1NX11+a21=1NX21ln(rA)=lnk+lnCA+lnCBj=1NX11Y1=a0j=1NX1j+a1i=1Nx1j2+a2i=1NX1jX2i=1Nx2jY1=a0j=1Nx2j+a1i=1Nx1jX2j+a2i=1Nx2j2
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Consider that steel wire has a mean tensile strength of 1300 lb and 2,5% of coefficient of variation. A cable is to be constructed with a capacity of 12,000 lb. How many wires are required for a reliability of 0.999?

I need accurate ansswer with good content 1 5 4 . What is the linear no - threshold model ?

The angle of inclination of the plane at which the body begins to move down the plane, is called A . angle of friction B . angle of repose C . angle of projection D . none of these

Effluent treatment cost in a chemical plant is categorised as the _ _ _ _ _ _ _ _ _ cost . Fixed Overhead Utilities Capital

Using the equations below, find the standard heat of formation, in kJ/mol, of calcium nitrate: (4) *Values have been changed for the purposes of this question; the calculated answer will not be equal to the true heat of formation of calcium nitrate. 2(s) 2(s) + 2(g), 32(s) 3(s) + 2(g), (3)2(g) + 8(s) 6(s) + 32(s), = 1402 / , = 378 / , = 3378 /

Question In Chemical Engineering, Don't Give AI Answer 3 2 .

Which unit operation is typically used to remove suspended solids from a liquid stream? A ) Filtration B ) Absorption C ) Distillation D ) Crystallization

La constante de equilibrio K para la unin del oxgeno a la mioglobina es 3x10^-6 M^-1. La constante de velocidad para la combinacin de O2 con mioglobina es 9x10^6 M^-1 s^-1. (a) Cul es la constante de velocidad para la disociacin de O2 de la oximioglobina? (b) Cul es la duracin media del complejo de oximioglobina? Tengo que K = [Mb][O2] / [MbO2]...

Which of the following is NOT a phase of blood coagulation? a. Conversion of prothrombin to thrombin b. Conversion of fibrinogen to fibrin c. Activation of platelets d. Activation of prothrombin

Argon at 3 5 C and 1 . 5 - bar pressure is compressed to 2 0 . - bar pressure at a steady - state flow rate of 2 0 m o l m i n . What is the outlet temperature and what is the work per minute if the compressor is reversible and adiabatic and argon is an ideal gas? If this process were done irreversibly to the same final temperature, what can you
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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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The gasification reaction represented by , C + H 2 O = CO + H 2 , is Exothermic Endothermic Catalytic Autocatalytic

Predict the product of each of the following reactions. If the reaction is not favored, write ' no reaction'. Carboxylic acid dervative HW
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In a Carnit engine with ammonia as working fluid the high temp is 6 0 C and as Q H received, the ammonio charges the state from sat'ed liq to sat'ed vap. The ammonia pressure at the low temp is 1 9 0 KPa Sketch the heat eyine cycle on - Find the heat oded party Find T L Find entropy ot the
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The table below from Putcha et al . ( 1 9 8 9 ) shows the average people ) plasma concentration of scopolamine over time after intravenously injecting 0 . 4 m g . Scopolamine is a drug used to treat motion sickness. Using these concentration data points and the provided two - compartment pharmacokinetic model equation, calculate the following:. V
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Question in Chemical Engineering Please Give Correct answer im preparing please otherwise I will dislike 2 2 8 2 1 2 8 4 .

Calculate the standard potential (E0) and standard change in free energy (G0) of a cell which is made of the following half cells Cu2+ + 2e- Cu (s) E0 = 0.34 Volts O2 (g) +4H+ + 4e- 2H2O E0 = 1.23 Volts A constant current of 0.800 A was used to deposit copper at the cathode. Calculate the mass of copper (Cu0) that was formed in 15.2 minutes

Lumped Capacitance: Steel balls 1 2 m m in diameter are annealed by heating to 1 1 5 0 K and then slowly cooling to 4 0 0 K in ( really hot ) air that is 3 2 5 K . The film heat transfer coefficient is: h = 2 0 W m 2 * K . Estimate the time required for the cooling process. Steel properties: k = 4 0 W m * K = 7 8 0 0 k g m 3 C p = 6 0 0 J k g * K
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answer fastly otherwise gives dislike 1 5 0 . What is a roentgen ?

consider a 80mm thick plate(=7800kg/m^3, cp=430J/kgK, k=64W/mK) that is initially at a uniform temperature of Ti=-20'C. The plate is suddenly exposed to 60'C liquid, where the heat-transfer coefficient is 500W/m^2K. (a) Calculate the temperature at the plate surface at t=1sec. (b) Calculate the heat flux at the plate surface at t=1sec. (c)

Sterilization of fermentation medium Sterilization is a process in which the growth medium to be used in fermentation is brought to high temperatures in the presence of steam, and kept for at least 2 0 minutes at this temperature in order to kill any bacterial spores which may lead to contamination later on during fermentation. A total of 1 0 0 0
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Rotary dryers cannot handle _ _ _ _ _ _ _ _ _ materials. Free flowing Dry Sticky Granular

3) Water is pumped from a reservoir to a packed tower at a volumetric flow rate of 0.02m3/s. Water enters the packed tower from the bottom and exits from the top as given in the figure and the top of the tower is open to the atmosphere. The pipeline consists of 50m of 3 -inch schedule 40 commercial steel pipe, which includes 90 elbows and two
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In a process producing M g S O 4 salt, 8 0 0 k g h feed solution containing 1 5 wt % M g S O 4 fed to an evaporator. Ther evaporating concertrates the solution to 4 0 wt % M g S O 4 and evoporates some water then the fed to a crystalyzer where crystal produce with 9 0 w t % M g S O 4 removed The saturated solution leaving the crystalize contaning
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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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2. Calculate the 143Nd/144Nd ratio of CHUR at a time 2.5109y ago given that ICHUR0=0.512638 and that (147Sm/144Nd)CHUR0=0.1967
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An enzyme has a molecular weight of 5 9 5 . 0 0 kD and undergoes a change in shape upon binding of substrate inhibitors. This change has been characterized by ultracentrifugation. In the absence of any ligands, a sedimentation coefficient of 9 2 . 5 0 S was measured. The solvent density was 1 . 0 0 g / cm 3 , the viscosity was 1 . 0 0 5 cP , and

A dilute solution of glucose enters a continuous fermentation process, where yeast cells convert it to ethanol and carbon dioxide. The aqueous stream entering the reactor is at 2 5 C and contains 5 w t % glucose. Assuming this glucose is fully converted to ethanol and carbon dioxide, and that the product stream leaves the reactor at 3 5 C ,
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1. Mix the volumes of ethanol and water indicated in the following table. 2. Complete the table Calculating the mass of ethanol and water and their molar fractions knowing that the density of ethanol is 0.7918g/mL, that of water is 0.99713g/mL, the molecular weight of water is 18.016g/mol and that of ethanol is 46.07g/mol. 3. Weigh these solutions
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A cylindrical container with a very large radius is filled with a combination of water (rho,w = 1.00 g/cm^3, mu = 0.01 g/(cm s), h,w = 2374 cm) and an organic solvent (rho,s = 0.80 g/cm^3, h,s = 1603 cm). There is an outlet to the container on the side of the tank to which a commercial steel pipe is connected (d = 1.7 cm, h,out = 186 cm, L = 273
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1 2 3 Initial 4.97 6.06 7.13 Final 36.06 37.13 38.20 Titer 31.09 31.07 31.07 In a titration experiment, 25mL of lake sample containing H2SO4 was taken, and concentration of 0.15 M of NaOH is used as the standard solution. To neutralize the sulfuric acid in a 54 km^3 lake, I have calculated that we need 2.8 x 10^3 Kg of CaO. Please determine the

Saltwater is an example of a: a ) Element b ) Compound c ) Mixture d ) Solution

Q11 Match the type of light transmission with its description. Transmits light with relatively little absorption. Transmits light diffusely. Is impervious to light transmission
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Paper industry employs _ _ _ _ _ _ _ _ _ driers. Cylinder Rotary Spray Fluidised bed

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

2) The gas phase reaction: 2NOCl2NO+Cl2 is carried out at 425C and 16.2atm. Pure NOCl is to be fed and the reaction follows an elementary rate law. It is desired to produce 20 tons of NO per year in a microreactor system using a bank of ten microreactors in parallel. Each microreactor has 100 channels with each channel 0.2mm square and 250mm in
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Question In Chemical Engineering, Don't Give AI Answer 2 6 .

Please determine the payback period for a low profile compact air stripper. Given information is that each air stripper costs about $ 4 0 , 0 0 0 dollars need a minimum of 9 air strippers. All other information needed can be assumed.

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