Chemical Engineering Questions and Answers February 03, 2018

A hot water bottle contains 7.05kg of water at 67.0 C. If water cools to body temperature 37.1 C, how many kilojoules of heat could be transferred to sore muscles?

In a piping system which has 6 "90o-Elbow Curved, Flanged/Welded", the pressure drop was measured as 3.41 bar for a flow rate of 0.274 L/s. To compare your experimental finding with theoretical value, calculate the theoretical pressure drop using the information given below. (1 m^3 = 1000 L; 100 cm = 1 m; 1 bar = 1 x 10^5 kg/(m.s^2)) Pipe Diameter

The purpose of the Reactor Protection System is to; a. Protect the reactor plant from damage due to the costly expense of repairs. b. Reduce the risk to the public by guaranteeing the integrity of the three fission product barriers. c. Maximize the amount of electrical power that can be safely produced. d. Protect the public while preventing the

Consider a unit cell with the following reciprocal lattice vectors: a1=0.29x^a2=0.145x^+0.251y^a3=0.251z^ Determine the distance between the (110) planes in this crystal

1. Consider methane-oxygen system. (a) Determine the stoichiometric reaction (b) If the O2 mole fraction in the product is 0.03 determine the equivalence ratio . (c) Would your result change if it was a methane-air system? Explain

There is an equimolar mixture of carbon dioxide and propylene at 30C and 25.5 atm. Obtain the molar volume of the mixture as well as the compressibility factor using Kay's rules for pseudocritical properties and the VDW EOS.

While surface preparation inspection of an offshore structure you have been noticed that blasting standard doesnt not meet the minimum requirement of Sa 2.5 (as per ISO 18501-1). The QC inspector for the contractor/applicator reports that, based on his visual assessment, the blasting standard meets the requirements of Sa 2.5 as per ISO 8501-1. How

In an actual refrigeration cycle, a heat pump uses R-12 as the working fluid. Vapor enters the compressor at 200 kPakPa , -5 CC, and leaves at 1.5 MPaMPa , 90 CC. The power input (Wnet)(net) to the compressor is 3.6 kWkW . The refrigerant enters the expansion valve at 1.2 MPaMPa , 40 CC and leaves the evaporator at 200 kPakPa , -12 CC. (Figure 1)

A cubic cold chamber, 3m on a side, is insulated by mean of Styrofoam and must maintain an interior temperature of -10OC. Due to loadshedding the temperature rises to 0oC after only 60 minutes. If the ambient temperature is 30 degrees, determine the insulator thickness .

Pipe support structure is coating in open area and while Epoxy mid coat inspection you have found the one thin oily layer on the coated surface. What is the about coating defect? How to remove above defect? What will be the surface preparation for subsequent coats?

In a solid cylinder of r=b and constant thermal conductivity, heat is generated at a constant rate g (Btu/h ft3) or (W/m3) and there are uniform temperature conditions T1. At r=b, determine the temperature distribution when the state is steady. urgent pleaseeeee

Among the single chemotherapeutic agents for breast cancer is docetaxel (TAXOTERE), which is administered @ 60 mg/m2 IV every 3 weeks. Calculate the dose for a 5-feet-4-inch patient who weighs 160 lb. Use the Mosteller formula to determine BSA.

a) 1f04=(2.5) -(6.2) j+ (1.7 )k, find the directional cosines b) If OB= (1.8)i-(3.7) j+ (9.2 )k, using O4 from part a), find the area of the triangle OAB. Calculate to an accuracy of 3 d.p. (4 marks) (6 marks) c) From its current Cartesian form, convert z = 2.576 - 1.874 j into exponential form (7 marks) d) Using the calculated value of z, as in

1. Consider methane-oxygen system. (a) Determine the stoichiometric reaction (b) If the O2 mole fraction in the product is 0.03 determine the equivalence ratio . (c) Would your result change if it was a methane-air system? Explain

Given the density of chloroform as 1 . 4 8 g m l , what will be the percentage composition of chloroform for a mixture containing 1 5 m l of chloroform and 6 g of water? A . 7 8 . 7 % B . 7 1 . 4 % 1 2 C . 6 8 . 7 % D . 7 2 . 8 % E . 2 1 . 3 % The best way measure 3 . 2 8 g of ethanol is to A . Use an analytical balance B . Use a density bottle C

[ 2 0 ] Ethylene oxide is produced by the catalytic oxidation of ethylene: C 2 H 4 + 1 2 O 2 C 2 H 4 O An undesired competing reaction is the combustion of ethylene: C 2 H 4 + 3 O 2 2 C O 2 + 2 H 2 O The mixed feed to the reactor contains three moles of C 2 H 4 per mole of O 2 . The fractional conversion of ethylene in the reactor is 2 0 . 0 % and

Use python or matlab to solve this problem please

3. 4. 5. 6. 7. Antoine constants for hexane and heptane are (Psat in mmHg. T in C) C Tmin hexane nhe tane 6.91058 1189.64 226.28 30 6.89677 1264.9 216.544 2 T max 170 123 (Recommended do a hand calculation of Psat to be sure you understand the proper use of log and T, e.g. check against the normal boiling point. This calculation does not need to

A producer gas has the volume composition of C O 3 0 % , C O 2 2 % , H 2 2 % and N 2 6 6 % . The producer gas is at 5 0 C and burned with 2 0 % excess air ( 1 0 0 C ) over the net O 2 demand. The flue gas is vented at 1 5 0 C . Calculate the heat ( in GJ ) that could be recovered from the burning of 1 0 0 kmol of the producer gas. Data Air

The reaction that governs steam reforming of butane are as follows: C 4 H 1 0 + H 2 O h a r r C 3 H 8 + C O + 2 H 2 C 3 H 8 + H 2 O h a r r C 2 H 6 + C O + 2 H 2 C 2 H 6 + H 2 O h a r r C H 4 + C O + 2 H 2 C 2 H 4 + H 2 O h a r r C H 4 + C O + H 2 C H 4 + H 2 OharrCO + 3 H 2 C O + H 2 O h a r r C O 2 + H 2 Consider initially that you have 8 7 k g

BioTransport. BIOEN 4 0 0 1 . Spring 2 0 2 4 Homework 1 . Due Jan. 2 3 . Pharmacokinetics. Intramuscular injection. The term pharmacokinetics refers to movement of a pharmaceutical within the body and the time - course of delivery to the target tissue. The diagram below is a simple 3 compartment model for drug delivery to a target tissue following

Actividades Ajusta los datos experimentales a las ecuaciones ( 1 - y selecciona aquella que describa mejor el com - portamiento reol gico con base en su coeficiente de regresi n ( R 2 ) o la suma de m nimos cuadrados Qu comportamiento reol gico tiene el medio de cultivo de A . niger? Argumenta tu respuesta con base en tus resultados del inciso

( 5 ) Limestone is a type of sedimentary rock mostly composed of calcium carbonate ( C a C O 3 ) . The presence of limestone in certain geographical regions can be crucial in determining several natural water chemistry parameters including alkalinity, p H , and dissolved calcium concentration. The reaction between calcium carbonate and dissolved C

Help me with this one

1. You work in the quality control (QC) lab at a water treatment facility where you ensure that potential contaminants are below federal and state thresholds. The facility you are working at is interested in buying a new spectrophotometric instrument to test nitrate levels in water. Your team recently sent out the same standard samples for

In a supersaturated solid solution, precipitation may lead to the formation of grains or particles of a new phase. It is found that, after an initial stage of this process that involves nucleation, there is a second stage in which the particles grow to much larger sizes. In the second stage the degree of supersaturation is slight, and the rate of

product types for a submersible lowering device

Which thermodynamic state function gives a measure of the maximum electric work that can be carried out in a fuel cell?

0.7 kg/s of steam at 1700 kPa and 375 C enters a turbine. The exhaust from the turbine is at 100 kPa and 150 C. What is the power of the turbine

SCENARIO Feathers and Wings ( F&W ) is a tropical bird centre located in the small village of Driford. F&W has 1 8 species of birds kept in purpose - built aviaries ( bird houses ) . Each aviary has an indoor and outdoor area. There are also nesting boxes in the trees surrounding the centre, which the native bird species use. F&W has had financial

Consider a hollow - fiber membrane used as an artificial kidney to remove urea and other contaminants from blood. The fiber has an inside diameter D i , an outside diameter D 0 , and length L . Blood enters the tube side of the membrane with a urea concentration C A i . On the outside ( shell side ) is a saline solution to sweep away urea. The

Background: A customer is considering our company as a new supplier of ethylene. The customer requires the production of 1 0 , 0 0 0 m o l ? day of pure ethylene. The contract is potentially quite lucrative, and the company could use the business. Luckily, Save the World Industries, INC has access to a cheap supply of ethane ( C 2 H 6 ) . Ethane

Show that the volume of the primitive unit cell is a) a3/2 for BCC and b) a3/4 for FCC lattice Hint: You will need to consider the atoms per cell

For the reaction A + 2B --> 3C, what is the rate law for each species and total order of reaction assuming that B is the limiting reactant

DFV Metanol, katalitik bir reakt rde karbonmonoksit ve hidrojenden elde edilmektedir. Taze besleme, molce % 3 2 . 0 CO , % 6 4 . 0 H 2 ve % 4 . 0 N 2 i ermektedir . Bu ak m , % 1 3 , 0 mol N 2 i eren reakt r beslemesini retmek i in 5 mol geri d ng / l mol taze besleme oran nda bir geri d ng ak m yla kar t r l r . Reakt rde d k bir tek ge i li d n

Acetic acid can be produced through the given balanced reaction and with the process shown in the image. C a ( C 2 H 3 O 2 ) 2 + H 2 S O 4 C a S O 4 + 2 C 2 H 4 O 2 In the process, 5 3 5 l b h of fresh C a ( C 2 H 3 O 2 ) 2 and enough H 2 S O 4 to be in 1 0 . 0 % excess for converting the fresh C a ( C 2 H 3 O 2 ) 2 is fed into the reactor. The

The design data for a pipe at the outlet of an oil - field steam generator are as follows: , Pipe size and schedule: 3 NPS , Sch 1 6 0 , carbon steel, ID = 6 6 . 6 m m Total steam mass flow: 2 7 , 8 0 0 k g h , Steam quality: 7 0 % , Steam Pressure = 1 3 , 7 0 0 kPag = 2 0 0 0 psia Barometric pressure = 9 0 kPa Density: liquid = 6 2 4 k g m 3 ,

a. What is the crystal structure for NaCl ? b. If the lattice constant is a=0.563nm, what is the distance from a sodium atom to the nearest chlorine? c. What is the distance from a sodium atom to the nearest other sodium atom

Assuming that the change of mass of methyl formate in the accumulated product in the beginning of the reaction at 40C equals the rate of formation of methyl formate, what is the apparent order of reaction and the size of the rate constant under these conditions. Is the assumption valid?

what are the requirements of mechanical design of the distillation column

The design data for a pipe at the outlet of an oil - field steam generator are as follows: , Pipe size and schedule: 3 NPS , Sch 1 6 0 , carbon steel, ID = 6 6 . 6 m m Total steam mass flow: 2 7 , 8 0 0 k g h , Steam quality: 7 0 % , Steam Pressure = 1 3 , 7 0 0 kPag = 2 0 0 0 psia Barometric pressure = 9 0 kPa Density: liquid = 6 2 4 k g m 3 ,

What is VINYL CHLORIDE (VCM) pressure at 15 degrees C?

Draw the process flow diagram of paracetamol

OH OH A c20 CF3COOH soc12 Amberlyst 15 NH20H OH OH HO

Process flow diagram of a paracetamol

3) Steam enters a turbine at 4 MPa and 500 degrees C and leaves the turbine at .4 MPa and 200 degrees C. What is the specific work produced by the turbine? What is the entropy change of the steam passing through the turbine? If the turbine were operating with 100% isentropic efficiency, what's its specific work? What's the efficiency of the

Using valence bond theory, represent the chemical bonds that make up the N1-C double bond in nicotine and the atomic orbitals that participate in those bonds. Nicotine

C 1 = exp ( - 1 3 . 4 + 9 3 8 0 T ) C 2 = exp ( - 6 . 2 + 4 8 8 3 T ) C 3 = exp ( - 7 4 . 6 - 3 9 0 6 0 T ) C 4 = exp ( - 2 7 . 8 + 1 5 9 4 8 T ) C 5 = exp ( - 1 3 . 7 + 8 2 2 9 T ) To solve the problem, you will need to know the Gibbs free energy of reaction, G r x n , for both reactions. In thermodynamics you will learn how to calculate these

What is the conversion and operating pressure for the reaction of acetylene to benzene

True or False Differential rate laws (e.g. r = k[A] 2 ) describe rate in terms of reactant concentration.

What is the volume of 10 pounds of saturated ammonia vapor at 0 F?

For a vertebrate neuron you are studying at 3 0 oC , you have measured the following intracellular and extracellular concentrations ( concentrations are in mM ) , although unfortunately you were unable to make accurate measurements of [ Na + ] s: [ K + ] in = 1 4 5 . 5 [ K + ] out = 4 . 2 [ Mg 2 + ] in = 2 . 2 [ Mg 2 + ] out = 5 . 4 [ Na + ] in =

Q . II: The goal is to develop an expression for the Thiele modulus and concentration profile of species A for the following reversible 1 s t order reaction that takes place in a porous planar ( slab ) catalyst: A l o n g l e f t r i g h t a r r o w k - 1 k 1 B , K = k 1 k - 1 ( Equilibrium constant ) with boundary conditions: C A = C A i d C A d

) Using the following Fe-C phase diagram, make schematic sketches of the microstructures that would be observed for the alloy 99.5 wt% Fe-0.5 wt% C at temperatures of 1000C, 800C, 727C, and 600C. Label all phases in your sketches as well as their approximate compositions and amounts. Use the attached answer sheet.

Write a detailed design proposal for any object or machine of your choice, but this machine or object has to improve our daily lives, example when there is no lights or water, how can this machine improve our lives.

Whats the integral reaction

chart 1 0.00678 0.00438 0.00342 3 4 5 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 count 20 0.003 rate 3.2394606 2.1008E06 1.6434606 1.4372E06 log(ll 2.16877 2.35853 2.46597 2.52288 log(rate) 5.48954 5.67161 5.78426 2.55 5.84248 ChM log(rate) vs Iogll 2.45 P Ict Y 3.3308 2.35 Iogl 2.3 sheet Sheetl sheetfl 2.25 suv

For the non-elementary reaction A + 2B --> 3C, which follows an elementary rate law, what is the rate law for each species (A,B,C) and total order of reaction assuming that B is the limiting reactant

In Section 6.4 a useful correlation between hardness and tensile strength was demonstrated for metallic alloys. Plot hardness versus tensile strength for the data given in Table 6.11 and comment on whether a similar trend is shown for these common thermoplastic polymers (you can compare this plot with Figure 6.29a).

2. (15 points) The jet airplane is flying at 110m/s in still air, A, at an altitude of 3km. Determine the absolute stagnation pressure (in kPa and Bars) at the leading edge B of the wing

16.39 Each of the following compounds does not participate as a diene in a Diels-Alder reaction. Explain why in each case. (a) (b)

sodium ion concentration?

In refrigeration and technology 9th edition unit 29 service call 29 what is the answer

solve d , e , f without solving a , b , cP 2 - 4 B The exothermic reaction of stillbene ( A ) to form the economically important trospophene ( B ) and methane ( C ) , i . e . , AlongrightarrowB + C was carried out adiabatically and the following data recorded: The entering molar flow rate of A was 3 0 0 m o l m i n . ( a ) What are the PFR and

In Section 6.4 a useful correlation between hardness and tensile strength was demonstrated for metallic alloys. Plot hardness versus tensile strength for the data given in Table 6.11 and comment on whether a similar trend is shown for these common thermoplastic polymers (you can compare this plot with Figure 6.29a).

6.1 For pure, liquid copper at its melting point, what is the Gibbs free energy of formation of a spherical crystalline cluster of solid (a nucleus of solid) of radius 5, 7, l A? Estimate the concentration of such nu.clei (r =: 5, 7, 10 A). For copper: Melting temperature = : 1083c Ys-1 =: 200 ergs/cm2 Heat of fusion =3120 cal/mol Assume that the

Subject:Petrochemical write the answer in step by step details 2What is the main reaction and secondary reaction of steam conversion method to get syngas? (15)

Create an interpolation excel formula for a complete table of values for a compressed liquid for any input pressure between 5 MPa and 1 5 MPa with Temperature as the x values and Specific Volume as the y values. The interpolation is done between multiple tables. For example if 6 MPa is the pressure input, the interpolation would be done between 5

04- The eigenvalues of: 5006190172337 A) 5,19,37 B) 5,19,37 C) 2,3,7 D) 3,5,37 E) Eigenvalues cannot be determined for this matrix

Subject:Petrochemical write the answer in step by step details 1. Assuming conversion and selectivity are 100%, calculate the atomic utilization of this equation. (15)

What do you understand by the number of degrees of freedom? How is it determined using the phase rule for a non-reacting system?

Subject:Petrochemical write the answer in step by step details 5 What is the block flow of prefractionation process of getting ethylene by cracking

Subject:Petrochemical write the answer in step by step details 3. What is the "block flow" of the basic steps of converting natural gas steam to syngas

materials and environment 9) Recycling of materials/products a) In the course we have covered Green Design. What does that mean? b) What are the pros and cons of recycling metal and glass

does increasing the pump displacement solve the gas interference problem of beam pump unit? I need detailed explanation.

Calculate the maximum power delivered by a solar cell of area 156 cm2, efficiency of 22%, at solar radiation intensity of 1000 W/m2. Calculate the fill factor if the short circuit current and the open circuit voltage of the cell are 650mA and 6 volts respectively.

Compute the value of BTU in terms of joul. the specific heat of water is 4.2 J/g.C Calculation Compute the value of (Btu) in term of (J). The specific heat of water is 4.2J/g. C

A household can be considered a small process. Material as well as energy flows in and out of the process. Prepare a flow diagram of a household that includes the kitchen, laundry, lavatory, toilets, bathtub/showers, furnace, and air conditioners. You may also look up data from various resources so that you can estimate allthe material flows in

How would you interpret the change in the absorption rate of CO2 over time. vT-NOL averageabsorptionrate=30.60[Cdi(t=45)Cdi(t=15)]VT

How would you interpret change in absorption rate of C02 over time. 30 .60 15 Minutes I. Anal is 30 Minutes 2. Anal is 45 Minutes 3. Anal sis VT 35 L cc02 (mgl,L) (Tank Entrance 0,108 0,078 0,06 cc02 (mpVL) (Tank QuUgD 0,048 0,02 0,024 Cdi (t 45) c02 QVS) gygagg rate

A temperature transmitter has been an output range 4-20 mA for a chart calibration between 0200C. the transmitter output at 70C equal Select one: a. b

Grain boundaries increase creep resistance of alloys for high temperature applications due to their role in blocking dislocation motion and high energy barrier to diffusion. Prove or disprove this statement. Use formulations and such for your arguments if necessary.

Example: calculate kd for benzoyl peroxide at 70,80 , and 90C. Calculate kp and kt for polymerization of styrene at 70,80 , and 90C

Part 2: Considering both amorphous and crystalline structures within polymers, what are the different material properties that correlate with these two different structure types

Water vapor, with a molecular mass of 18 kg/kmol, enters a nozzle at 1100[kPa], 400[C] and 30[m/s], and exits at 300[C] and 300[kPa] while giving up heat to the around a rate of 25[kW]. The input area is 800[cm2]. Determine: a) The output velocity c2 (m/s): b) Volumetric flow of steam at the nozzle outlet (m3/s)

A household can be considered a small process. Material as well as energy flows in and out of the process. Prepare a flow diagram of a household that includes the kitchen, laundry, lavatory, toilets, bathtub/showers, furnace, and air conditioners. You may also look up data from various resources so that you can estimate all the material flows in

If Va = vol. of acid of normality N required to neutralize a volume of sea water V to a pH = 8.3, Vb = vol. of acid required to reach to pH = 4.5, find the P and M alkalinities.

A storage tank is being vented to the atmosphere, it contains a mixture of 70% acetone and 30% benzene. What temperature should the tank be kept at to ensure that the vapour space that is above the liquid has a concentration less than 7*10^-5 mol/m^3 of VOCs. The mixture can be treated as an ideal gas. Acetone: ln(P) = 10 2941/(T 35.96) Benzene:

The interaction energy between Na+ and Clions in the NaCl crystal can be written as () = [(. / ) + ( . / ) ] Where the energy is given in joules per ion pair and the interionic separation r is in metres i. Calculate the binding energy and equilibrium separation between Na+ and Clions . ii. Also estimate the elastic modulus Y of NaCl given that; Y

2(g) Write resonance forms that describe the distribution of electrons in the carbonate ion, CO32

2(g) Write resonance forms that describe the distribution of electrons in the carbonate ion, C032 (3)

8: An aqueous solution containing 85.0 wt % H 2 SO 4 at 60 F (specific gravity 1 . 78) is diluted with pure liquid water at the same temperature. The feed solution volume is 350 mL. The mixing may be considered adiabatic, and the pressure is constant at 1 atm. (a) The product solution is to contain 30.0 wt % H 2 SO 4 . Calculate the volume (mL) of

The fugacity coefficient for a gas conforming to the following equation of state is 1, 5, 10 bar. calculate for pressure PV=RT(1-0.00513P) P[bar]

Bakr tozunu tek eksenli pres ile silindirik kalpta sabit basn (700 MPa) altnda farkl H/D oranlar (0,42 , 0,79 ve 1,66) kullanlarak sktrlmtr. Silindirik kalpta e basn dalm erilerini her bir H/D oran iin ematik olarak iziniz. Sinterleme sonrasnda hangi H/D oranna sahip parada blgesel younluk fark en fazla olacan ksaca aklaynz

4(f) Show by suitable net ionic equations that HSO4can act as either a Bronsted-Lowry acid or Bronsted-Lowry base

4(f) Show by suitable net ionic equations that HSQ can act as either a BronstedLowry acid or BronstedLowry base. (4)

2.5. Diels-Alder adduct A was converted to compound 7 via a sequence of 4 steps as shown below. Compound B is known to be acidic. Draw the structures of BD. A 1)NaOH(aq)H3O+B KI3NaHCO3 C DBU D 1) NaOH(aaq)

3(e) Draw the trans-isomer is 1,2-dibromoethene

3(e) Draw the transisomer is 1 ,2dibromoethene. (2)

The mole fractions of the components for the following reactions Express it in degrees (reaction coordinate). Initially 2 moles of C2H4 and 3 moles O2 C2H4 (g) + 1/2 O2 (g) ( CH2 )2 O (g) C2H4 (g) + 3O2 ( g ) 2 CO2 ( g ) + 2 H2O ( g )

For the benzene(1)/toluene(2) mixture by applying Raoult's age, the following do the calculations. a. Given x1 = 0.33 and T = 100C, find y1 and P. b. Given y1 = 0.33 and T = 100C, find x1 and P. c. Given x1 = 0.33 and P = 120 kPa, find y1 and T. d. Given y1 = 0.33 and P = 120 kPa, find x1 and T. e- Given T = 105C and P = 120 kPa, find x1 and y1

(b) Explain the reaction co-ordinate and multi reaction stoichiometry in chemical reaction equilibria

Table Q3(a) (b) Explain the reaction coordinate and multi reaction stoichiometry in chemical reaction equilibria.

3(b) Consider the molecule shown in the diagram below. Give the name of the functional groups labelled A,B,C and D in the diagram: (8)

4(g) What is the H+concentration of solution that has a pOH of 4

4(g) What is the concentration of solution that has a pOH of 4 (3)

what is the name ? CHCCH2CH2CH=CH2

CHECCH2CH2CHCH2

A tensile test is applied to a glass rod (4 x 20 mm). The initial 50 mm length of the bar increases by 0.25 mm under 2.5 kN impact. The glass rod is damaged at 4 kN. According to this; - What is the E-value of the glass? - What is the deformation that occurs at the moment of breaking in the glass.

(a) Consider the phosphoric acid molecule, H3PO4. Calculate the total number of valence electrons in the molecule (Show your answer.) Draw the Lewis structure of H3PO4