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Chemical Engineering Questions and Answers January 16, 2018

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1. How much heat is required when 10,000kg of CaCl2 is heated at atmospheric pressure from 50C to 880C
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7. From the tensile stres5-strain behavior for the copper specimen shown in Figure. Determine the following:- a) The modulus of elasticity. (2 points) b) The yield strength at a strain offset of 0.002 . (2 points) c) The maximum load that can be sustained by a cylindrical specimen having an original diameter of 15mm. (8 points) d) The change in
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Discuss the principles behind phase equilibrium in multicomponent systems.

Q8 A completely amorphous and nonporous polymer will be: opaque transparent translucent ferromagnetic
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Using automation tools leads to dislike 7 0 . Define the term constraint in the context of optimization.

A mixture of benzene and toluene containing 40 mole per cent benzene is to be separated to give a product containing 90 mole per cent benzene at the top, and a bottom product containing not more than 10 mole per cent benzene. The feed enters the column at its boiling point, and the vapour leaving the column which is condensed but not cooled,
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GZ 0 6 1 ( 2 ) ( 2 ) N 2 0 4 + 2 N 0 2 . S = 2 4 0 . 0 4 J mol'k N 2 0 , Ach = 9 . 0 8 KJmol S = 3 0 4 . 3 8 J Mol'ki = 0 . 1 0 1 3 2 5 MPa T = 2 9 3 . 1 5 K . AG = 5 . 5 2 7 " . . ( ) ( ) ( C ) NO 2 0 . 1 T = 2 9 3 . 1 5 ? ) ' p ' = 0 . 1 0 1 3 2 5 MPa e ) NO 2 = 0 . 1 0 1 3 2 5 MPa T = 2 9 3 . 1 5 K f ) p = 0 . 1 0 1 3 2 5 MPa T = 2 9 3 . 1 5 K .

What mathematical function is expected to provide the best fit to the turbidity data obtained from coagulant/flocculant dosage optimization? a.) f(x)=mx+b b.) f(x)=Aeiwt c.) f(x)=x2 d.) f(x)=x3 What mathematical function is expected to provide the best fit to the turbidity data obtained from coagulant/flocculant dosage optimization? a.) f(x)=mx+b
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Atleast try to give correct answer..i'll give upvote 1 6 7 . What are the methods for handling radioactive materials?

1 4 4 . .

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There is one plug flow and one completely mixed reactor operating in parallel to treat wastewater. What will be the removal performance of the treatment plant if reactors operate in series? The wastewater flow rate is 8 7 2 m ^ 2 / d with a COD load of 2 1 0 mg / L . The reactor dimensions are 4 m for the cubic tank and 2 . 9 m in height, 2 m in

A filtration process is carried out at a constant flow rate. Then it continues under the conditions of constant pressure difference of 5 0 0 N / m 2 . It is known that 1 . 6 m 3 of filtrate is obtained in 3 0 0 seconds at a constant flow rate. Determine the voidage of the bed ( \ epsi ) if the obtained final filtrate volume is 6 m 3 after 1 2 0 0

Question in Chemical Engineering Don t Answer If u Don t know Compulsory I will give multiple dislikes 3 6 .

FZ 0 7 A + B - > D A + B - > U , - ra = ki CA 0 0 . 8 Cb - 1 A = k 2 CA 0 1 . 6 . CB D U C

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The following reaction is the isothermal (200C), isobaric ( 5atm) catalytic gas-phase reaction. A+2BC The feed enters the Packed Bed Reactor with volumetric flow rates ( v0=60dm3/min ). a) Set up a stoichiometric table and express the concentration of each species in the reaction as a function of conversion evaluating all constants. (,) b) Write
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Figure 2 i. Name the types of processing methods depicted in figurel and figure 2 : [2] i. Name the three major zones in Figure 1. [3] i. Compare the two methods (use a table format) in terms of - Type of polymers used - Mold heating or cooling - Part complexity [6] iv. State which one of two methods will allow the use of long reinforcements
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Considere la siguiente informaci n de este Dise o de un controlador directo que pueda usarse junto con controladores PI ya dise ados .
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Water is evaporating from a pool exposed to a breeze of ambient air at 3 0 0 K , 1 . 0 1 3 2 bar and 2 5 % relative humidity. Assuming that mass transfer is due to molecular diffusion through a stagnant film of air of 8 0 mm determine the following: A ) The diffusivity of water in air using Hirschfeldre's equation B ) The model to evaluate the

A wastewater which characteristics are given below is fed to an A/O Process having a total sludge age of 5 days. 50 % of influent fermentable substrate is known to be converted to acetate when anaerobic volume fraction is 0.1. The recycle stream is assumed to contain no nitrates. Stoichiometric and kinetic coefficients are given below. YH =

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HQ 1 8 "Brayton e tsatsam gas turbine elektrik us d w e naa us e didime si le 2 0 MW va o 5 0 MW . Dzox x si le tsatsam la ate u a o 1 2 0 0 K e ses me . Nya o eamenu suet le 9 0 va o 1 2 0 kPa me eye nya o eamenu g t le eme." a range of 3 5 0 to 4 0 0 kPa. Turbine kple compressor e isentropic efficiencies le 0 . 7 0 va o 0 . 8 5 dome ts e be asix

A heterogeneous catalytic Reactor ( Packed bed reactor ) with three series reversible reactions. The following reactions follows an elementary rate law. With the use of zinc oxide solid catalyst ( The density of catalyst 0 . 6 k g d m 3 ) : C 5 7 H 1 0 4 O 6 ( l ) + H 2 O ( l ) l o n g r i g h t a r r o w C 3 9 H 7 2 O 5 ( l ) + C 1 8 H 3 4 O 2 (
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El etano (C 2 H 6 ) se quema con aire en un reactor de combustin continua en estado estacionario para producir una mezcla de monxido de carbono, dixido de carbono y agua. La alimentacin al reactor contiene 10 mol/min de C2H6 y 200 mol/min de aire. El porcentaje de conversin de etano es del 70% y el gas que sale del reactor contiene 7 moles de CO 2

n-Butanol (C4H10O) and acrylic acid (C3H4O2) undergo a liquid phase esterification process at 85 oC and 3 bar in a catalytic reactor to form 170,000 metric tonnes per annum (MTA) of butyl acrylate (C7H12O2) and water. The feed to the reactor, which is at 25 oC and 1 bar, contains 35% by mass of acrylic acid and the rest is n-butanol. In the

. _ _ _ _ _ _ _ _ _ fibres are made of polyamides. Dacron Nylon Rayon Orion

GY 0 1 ( 5 1 ( 0 . 0 4 ) 3 . 5 ( a ) ( b )

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answer correctly or I'll give multiple down vote 1 8 . What is the role of a piping and instrumentation diagram ( P&ID ) in plant design?

HN 1 5 " . plz a 2 VT / kt Cp - Cv = a 2 VT / Kt .

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Task: Determine the economic and efvironmental benefits of replacing 3 0 top loading washing machines with 3 0 front loading machines. Problem Deseription: A laundromat has hired your company to perform an environmental assesament on a project to determine the economic and environmental benefits due to replacing 3 0 top loading waihing machines
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Which clement is defined by this eet of quartum numbers' n = 3 , L = 2 , m l = 0 , m l = + 1 2
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EXPERIMENT G1: Dynamic Response Modelling & Temperature Controller Tuning in a Jacketed Flow Reactor Objective This experiment involves a jacketed, mixed flow reactor in which an exothermic (heat generating) liquid phase reaction is taking place. Reactant flows into and product flows out of the reactor, on a continuous basis. A cooling jacket,

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R134A fluid is used in a two-stage cascade cooling system. The system operates between 0.5 MPa and 1.3 MPa. The stage pressure at which the heat released from the lower cycle is transferred to the upper cycle is 0.7MPa. The heat exchanger used between stages is an adiabatic and counter flow heat exchanger. Since the R134a flow rate used in the

6. Different designs have been made for an equipment that is planned to be purchased and the following data are obtained. After tax, the minimum return on investment is expected to be 20%. Which design should be accepted? (Income tax rate can be accepted as 35\%). 6. Different designs have been made for an equipment that is planned to be purchased
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Complete the following nuclear reaction equations: (a) 01n+714N()()+11H (b) 12H+49Be0()()+01n (c) 01n+510B()()()+24He
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What is the molecular formula for the alkane of smallest molecular weight which possesses a stereogenic center? a ) C 4 H 1 0 b ) C 5 H 1 2 c ) C 6 H 1 4 d ) C 7 H 1 6

1.An oil and gas company is looking to improve the efficiency and safety of its operations by implementing automated level measurement systems in its storage tanks. The company operates in a hazardous environment with high temperatures and pressures, and the tanks contain a variety of liquids and gases, including crude oil and natural gas liquids.
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Into two solutions of 100.mL acetic acid having concentration of 0.501M and 0.400M,2.04g and 2.02g of active charcoal are added, respectively. After the proper mechanical shaking and the volumetric analysis of the equilibrium concentration of the acetic acid (Ce), it is found that the acetic acid concentrations became 0.463M and 0.367M,
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In the A-B alloy with uniform solution property, the interatomic bond parameter at 1250K is =1500. given. Accordingly, for the combinations XB=0.20.40.60.8 a) Calculate the mixture free energy (GM), enthalpy (HM) and entropy ( SM ) of the solution. This Show the compositional variation of the thermodynamic properties on a single diagram. b)
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2. How many of the following are found in 10.0kmol of ethane (C2H6) ? (a) (C2H6)kg; (b) mol(C2H6); (c) lb-mole (C2H6); (d) mol (g-atom) C; (e) mol H; (f) g C; (g) g H; (h) molecules of (C2H6)
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HH 1 7 2 0 1 0 0 1 5 ( 1 0 0 % ) 2 0 / 1 cp viscosity 1 . mD ii iii 2 cp viscosity 2 5 "

( 4 0 P ) In a beer factory, the waste water is being heated by a heat exchanger. The temperature of the heating water is 4 5 C and its flow rate is 2 5 m 3 h . The inlet and outlet temperatures of waste water recorded as 1 0 and 3 0 C , respectively and its flow rate is 3 0 m 3 h . a ) Calculate K and values for this heating system. b ) If the
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In an air standard Brayton cycle the air enters the compressor at 0.1 MPa, 35 C. The pressure leaving the compressor is 3.04 MPa. and the maximum temperature in the cycle is 1086 C. Assume a compressor efficiency of 94%, and turbine efficiency of 92%. Determine the thermal efficiency (th,Brayton) using cold air properties.In an air standard

Consider an ideal chain constructed of N Kuhn segments of length . The chain has two multivalent positive charges Z e e + at both of its ends ( known also as a telechelic polymer ) . The two charged ends repel each other and stretch the polymer. If the coulomb force between two charges + Z e in a solvent of dielectric constant is given by f = ( Z

The viscosity of a 12cm3 liquid was measured using two different viscometers, namely A and B, as 0.326cP. Based on the following viscosity equation =At and knowing that the constant values of the two viscometers are 0.0012mm2/s2 and 0.012 mm2/s2, respectively. What would be the factor of the time flow of the liquid in viscometer-B compared to
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FG 1 9 1 0 . , 0 . 1 7 kPa

Question in Chemical Engineering Don t Answer If u Don t know Compulsory I will give multiple dislikes 6 6 .

FQ 0 2 2 1 % 1 0 0 % 1 . 0 1 0 , 0 0 0 / : 3 . 4 1 4 . 3 2 5 . 9 6 7 . 7

(15\%) A stream of air at 100C and 5260mmHg contains 10.0% water by volume. (a) Calculate the dew point and degrees of superheat of the air. (b) Calculate the percentage of the vapor that condenses and the final composition of the gas phase if the gas is cooled to 75C at constant pressure. (c) Calculate the percentage condensation and the final
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the answer is in purple but i want to know how to do it. 22. After completing an electrolysis, a lab tech preparing nickel coated electrodes measured the mass of plated nickel to be 1.146 grams and determined the current efficiency was 92.96%. Given that the applied current was 0.847A, and that the nickel was being plated from a solution of NiCl2
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8. A pulse test on a pilot reactor gave the following results : (i) How many tanks in series are necessary to model the RTD data ? (ii) What conversion will be predicted by the model for an elementary isomerization with k=3.1hr1 ? (iii) What conversion is predicted by the segregation model for part(ii)
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7 3 . At the critical point of a substance The surface tension vanishes Liquid and vapour have the same density There is no distinction between liquid and vapour phases All ( A ) , ( B ) and ( C )

Q4 - Dissolution A sugar cube (Lo=1cm) is dissolving in a cup of tea. The mass transfer coefficient, kc, to the tea is 5.0105m/s. You may assume lumped capacitance is valid. The molecular weight of sugar is 342.3 and its density is 1580.6kg/m3. The concentration of sugar in the tea, c is effectively zero. How long will it take for the cube to
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Question 1 (20 pts). Hydrogen fluoride's constant volume heat capacity is given by the Cv [J/mol.K]=26.5+0.0547T(K) formula. Derive the expression for the heat capacity of HF at constant pressure by assuming ideal gas behavior. Calculate required heat energies to increase the temperature of 5 mols HF from 35C to 95C in a constant volume process
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The ability of an atom to attract electrons towards itself in a chemical bond is called: A ) Electronegativity B ) Electron affinity C ) Ionization energy D ) Atomic radius

Explain the concept of mass transfer limitations in chemical reactors.

FM 1 9 2 . 2 A + B = 3 C + 2 D , 1 . 0 0 mol A , 2 . 0 0 mol B 1 . 0 0 mol D 2 5 * , . 0 . 9 0 mol C 1 . 0 0 . ( ) ( ) Kx ( ) K { d } 4 , 6 3 . NH 4 Cl 4 2 7 6 0 8 . . 4 5 9 1 1 1 5 . . ( ) ( ) ( ) enthalpy ( ) 4 2 7 C AH AS

Answers are provided at the end of the question 1. Stationary Gas Turbine A stationary gas turbine operates on an ideal Brayton cycle that has a pressure ratio of 8 . The air properties at the start of the compression are 14.5psi and 77F. The maximum cycle temperature is 2012F. Determine (a) the thermal efficiency, th (b) the compressor work per
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Alumina powder is fed into a pipe with a diameter of 5 . 5 in and 1 2 in high until the thickness is 1 0 in . alumina bulk density 6 4 lb / ft 3 . Air is injected into the pipe from the bottom to fluidize the alumina. fluidize the alumina. The air flow velocity is 1 5 8 lb / Jft 2 . Alumina grains are 0 . 0 0 4 2 in . physical properties: a Air

2. A 810kg/m3 density oil is being pumped through a 3-inch St40 steel pipeline at a velocity of 1.5m/s. The pump work is 250J/kg. a) Is the existing 2kW pump suitable for this task at the factory? What is the daily electricity cost for the pump? The pump efficiency is 80% and the unit price for electricity is assumed to be 3.67TL/kWh
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You do some ( cursory ) research into decaffeinating coffee beans. While there is apparently a market for coffee with no caffeine, there seems to be a bigger market for products that have caffeine without all that coffee nonsense. Caffeinated water is a thing - water, a pure beverage that has been a human staple for millennia now needs a little
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FG 1 4 Jeffreys ketene : CH 3 COCH 3 CH 2 CO + CHA A + B + C w . rit 3 4 2 2 2 k = 8 . 1 9 7 3 3 . 1 0 4 k s ' T K . T 7 8 5 0 ( 3 7 . 6 mol / s ) reactor tubular 1 0 0 0 1 4 0 ( ID = 2 . 6 6 ) 1 8 0 1 2 : diabatically 3 1 1 0 J / m 2 . s - K T Ta 1 2 5 0 K 4 3 5 : 4 ( CPair = 3 4 . 5 J / mol - K ) 0 . 1 1 mol / s Too = 1 2 5 0 K T & P 1 0 3 5 K &

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

Fluid flow of ice cream No more than 300 words, write a report on the fluid flow of a ice cream plant

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b . Methanol ( 1 ) and acetone ( 2 ) form an azeotrope at 7 6 0 Torr with x 1 = 0 . 2 , T = 5 5 . 7 0 C . Evaluate the parameters in the van Laar equation. Estimate the liquid composition and the pressure if the liquid phase is in equilibrium with a vapor composed of 7 5 mol % acetone at 2 5 C . You may assume that the vapor phase is ideal. c .
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A refinery that produces 325 kg/h of benzene at 100 C and 1.5 atm uses a water-fed condenser to prepare the benzene for transportation at 30 C and 1 atm. Be sure to indicate all sources of data when answering the following questions. a) Use a hypothetical process path to calculate the enthalpy change for benzene (kW). b) If the cooling water

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

gooddd answer you get Upvote 5 9 0 . Explain the principles of zeolitic imidazolate frameworks ( ZIFs ) and their applications in gas separation for chemical engineering.

(For transverse vibrations of the system shown in the figure above) E = 70 GPa m = 2kg = 2,7 g /cm3 k = 10 kN/m a) (Find Equation of Motion). b) (Find boundary conditions). c) Find frequency equation).
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Develop mass transfer problem and solve it either using Fick's law equation

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Difusin de dixido de carbono en una pelcula de agua que fluye laminarmente. Determinar a qu altura la concentracin promedio de CO2 correspondera al 50% de saturacin

Drilling occurred at the depth 7 km. The required bottom-hole pressure at this depth to keep the wellbore stable 100 MPa. The drilling mud is made of water, polymer and barite. 2 kg of polymer is added per 1 m of water to ensure that the fluid is viscous enough to suspend the barite particles. 400 tonnes of barite is available for the mud. Take
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A. What is the amount of heat that must be removed in cooling 1 lb-mol of 0.8 Specific Gravity Natural Gas at 500 psia from 600F to 300F? (Use the chart) B. If this gas is heated from 200F to 300F how much heat is required per lb-mol of gas? Entropy, Btu per pound-mole per degree Fig. 3.II Enthalpy-Entropy diagram for 0.8 gravity natural gas.
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What is the energy of the photon absorbed by the transition of an electron in a hydrogen atom from energy level n = 2 to n = 5 ?

Answer quickly for thumbs up Answer is Methane (CH4) can be dehydrogenated according to the following reaction - 2CH4(g)C2H2(g)+3H2(g) However, the acetylene (C2H2) produced can in turn undergo dehydrogenation to form solid carbon - C2H2(g)2C(s)+H2(g) A chemical engineer has designed a process to produce C2H2 where CH4 is fed to a reactor at 1550C
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A rectangle is constructed with its base on the diameter of a semicircle with radius 12 and with its two other vertices on the semicircle. What are the dimensions of the rectangle with maximum area? Let A be the area of the rectangle. What is the objective function in terms of the base of the rectangle, x ? A= (Type an expression.)
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Consider PBR with diameter D = 0 . 5 c m , length L = 2 m and porsity 4 0 % , if the density of catalyst = 2 gca t c m 3 . What is the weight of the catalyst ? a ) W = 2 0 0 g b ) W = 7 0 g c ) W = 4 7 g d ) None of the above
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3 7 6 .

- The power input P to a centrifugal pump is a function of the volume flow Q(m3/s), impeller diameter D(m), rotational rate (1/s), and the density (kg/m3) and viscosity (kg/ms) of the fluid: P=f(Q,D,,,) Show that : 3D5P=f(D3Q,D2)
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7 - 6 The following data were obtained at 7 0 C for the equilibrium adsorption of n - hexane on silica gel particles. Partial pressure of C 6 H 1 4 in gas, atm 0 . 0 0 2 0 0 . 0 0 4 0 0 . 0 0 8 0 0 . 0 1 1 3 0 . 0 1 5 6 0 . 0 2 0 6 C 6 H 1 4 adsorbed, gmo l g g e l 1 0 . 5 1 0 - 5 1 6 . 0 1 0 - 5 2 7 . 2 1 0 - 5 3 4 . 6 1 0 - 5 4 3 . 0 1 0 - 5 4 7
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1 1 . The capacity of a multiple - effect evaporator is typically limited by: - a ) Heat transfer surface area - b ) Feed rate - c ) Number of effects - d ) All of the above

continuum Hypothesis

2 - For a continuous and oriented fiber - reinforced composite, the moduli of elasticity of the fiber and matrix are 8 5 and 2 0 GPa, respectively. If the volume fraction of fibers is 0 . 3 0 , determine the upper and lower limits of the moduli of elasticity ( in GPa ) of the fiber - reinforced composite, respectively. a ) 3 7 . 7 ; 2 8 . 4 b ) 3
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Question 2: Diffusion plus convection with chemical reaction Pure gas A diffuses from the bulk gas (point 1) to a catalyst surface (point 2) where it irreversibly reacts to produce gas B. The balanced chemical reaction is given as: 4A(g) 3B(g) Once formed, the gas B diffues back a distance S to point 1. (a) Derive the equation (or expression) that
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Question in Chemical Engineering Please Give Correct answer im preparing please otherwise I will dislike 1 8 9 1

FQ 0 7 4 . 1 5 . 5 0 0 1 0 . 0 wt % 9 0 . 0 % ( , P . 0 . 6 8 / . ) 9 0 . 0 wt % , 1 0 . 0 % ( p 2 = 0 . 7 8 / ) . , 2 2 , 6 0 . 0 wt % , 4 0 . 0 % . ( ) ( )

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