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Chemical Engineering Questions and Answers January 16, 2018

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2. A plant is producing 10,000 ton/y of a product. The overall yield is 70%, on a mass basis ( kg of product per kg raw material). The raw material costs 10Birr/ton and the product sells for 35Birr/ ton. A process modification has been devised that will increase the yield to 75%. The additional investment required is 35,000 Birr and the additional
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5. For IV infusion of drugs (see course notes for more background information), we can assume that the volume delivery in the IV line of the ICU patient is too small to appreciably change the body fluid volume. Then Vbf may be taken as a constant and the differential equation for drug concentration in the plasma reduces to:
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2) Doal gazn balca bileeni olan metan aadaki gibi yanar. CH4(g)+2O2(g)CO2(g)+2H2O(s)H=890,3kJ a) 2,80107kJ is elde etmek iin ka kg metan yaklmaldr? b) 18,6C ve 768mmHg basnta 1,63103L metann tam yanmasndan ka kJ s aa kar? 2) Doal gazn balca bileeni olan metan aadaki gibi yanar. CH4(g)+2O2(g)CO2(g)+2H2O(s)H=890,3kJ a) 2,80107kJ is elde etmek iin ka
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Choose the correct statement regarding thermal cracking. Moderate changes in operating temperature does not change the depth of cracking Increased residence time results in the decreased severity of cracking At low pressure, the yield of lighter hydrocarbons are more Greater depth of cracking gives lower octane number gasoline

i need 9 7 . .

9 8 .

8 6 . How would you design an experiment to study the effect of particle size and concentration on the rheological properties of a slurry using a rotational viscometer? Discuss the selection of particulate materials, the experimental setup, the procedure for measuring rheological properties, and the methods for analyzing the data to determine the

i need correct answrrs 1 0 1 2

a) what are the principal axes for molecules a and b, respectively? b) how many reflection planss does molecule b have? draw the molecule showing atleast one c) what are the point groups of molecules a and b, respectively? (a) (a)
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A liquid stream containing 47.0 mole\% benzene and the balance toluene at 30.0C is fed to a continuous single-stage evaporator at a rate of 1520mol/s. The liquid and vapor streams leaving the evaporator are both at 91.0C. The liquid phase leaving the evaporator is measured to be 32.5 mole\% benzene. Pressure and Vapor Composition If the system
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The following properties for air and combustion gas may be used: For air: Cpair = 1.005 kJ/kg-K, = 1.4 For post combustion gas: Cpgas= 1.148 kJ/kg-K, = 1.333 for air and gas after combustion, R = 287 J/kg-K State all the necessary assumptions in your calculations. a. A big fan is now being installed in front of the compressor. The estimated

1 1 - Gas A decomposes irreversibly to form gas B according to the reaction A 2 B , ( - r A ) = k C A 2 . The reaction is second order and is performed in an isothermal constant pressure batch reactor. Determine the conversion with time? Answer: t = 1 k C A O { l n ( 1 - x A ) + 2 x A 1 - x A } 2
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For the following transfer function model. G(s)=(s+2)(2s+1)8s+16e5s 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? e) What is/are value(s) of Poles? d) Based on your
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3.1 Find the Laplace transforms of the following functions, using the information in Table 3.1. (However, some of the individual terms in these functions may not have Laplace transforms.) 3t (a) f(t) 5 et te4t (b) f(t)sin(4t) t 3 e(t3) 5t t (c) f(t) cos(4t) t5 (d) f(t) (t 1) cos(4(t 1)) 2
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The following reaction reaches equilibrium at 650C and atmospheric pressure N2(g) C2H2(g) 2HCN(g) If the system initially is an equimolar mixture of nitrogen and acetylene, what is the composition of the system at equilibrium Assume ideal gases. (For data, use the heat capacity of gases in the ideal state table.) The values of R are given in the
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Consider the one - way data table. What is the optimal supplier contract? $ 0 $ 1 0 Million $ 2 0 Million $ 3 0 Million $ 4 0 Million $ 5 0 Million $ 6 0 Million $ 7 0 Million $ 8 0 Million $ 9 0 Million $ 1 0 0 Million

Air at 50 C and M = 0.75 is accelerated to M = 2. If the static temperature at M = 2 is 100 C, how much energy per unit mass must be added to or rejected from the flow?

What is the most challenging engineering project youve dealt with? How did you ensure its success?

Hitung waktu yang dibutuhkan untuk membakar partikel grafit hingga tuntas (Ro = 5 mm, Pb = 2,2 gm/cm^3, k = 20 cm//detik) dalam aliran oksigen 8% Untuk kecepatan gas tinggi yang digunakan asumsikan bahwa difusi film tidak memberikan hambatan apa pun terhadap transfer dan reaksi. Suhu reaksi = 900c

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