Q1.The results of a batch settlement analysis carried out on a mixed suspension are given in the following Table 1.
Plot the cumulative velocity profile of the suspended solids and compute the predicted removal rate by settlement.
| Number | Sample depth(m) | Sample time(h) | SS in sample (mg/l) |
| 1,2,3 | 1,2,3 | 0 | 222(averaged) |
| 4 | 1 | 1 | 140 |
| 5 | 1 | 3 | 108 |
| 6 | 1 | 6 | 80 |
| 7 | 2 | 1 | 142 |
| 8 | 2 | 3 | 110 |
| 9 | 2 | 6 | 106 |
| 10 | 3 | 1 | 142 |
| 11 | 3 | 3 | 130 |
| 12 | 3 | 6 | 124 |
| 13 | 4 | 1 | 147 |
| 14 | 4 | 3 | 126 |
| 15 | 4 | 6 | 114 |
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a laboratory-scale stirred tank fermenter of volume 51 (do/h=1/2) is to be scaled up to 500l by using the following criteria: di/do=1/3, n=100rev/min. determine the size of the fermenter impeller diameter and speed for each case:
a. constant oxygen transfer rate
b. constant power/volume
c. constant impeller tip speed
d. constant mixing time
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Consider the electrochemical cell described below: What is the cell potential (Ecell) for the voltaic cell described below if the.
Ag(s) çAg2CrO4 (Sat. Aq. Soln) çç Ag+ (0.125 M) ç
Ag(s)
a. What is the concentration of [Ag+] in the anode of the cell
described above, if the Ksp of
Silver (I) chromate is 1.1 x 10-12 ?
b. What is the Ecell?
c. Draw an overall cell diagram for this cell. Remember to label the cathode, anode, and electron flow.
please answer all
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Problem 1: You have a particle system that you produced for your research work. Now you are not sure what size of particles it will be. Which particle size analyzer/technique you will use and why? Give the fundamentals of how the analyzer/technique works.
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1. a) Determine the molar solubility of Cu(OH)2.
THE ANSWER IS: 1.77X10^-7M
b) Write the balanced reactions, overall reaction, and determine the equilibrium constant upon dissolving Cu(OH)2 in a strong acid. (4 pts)
I cant seem to write the reaction of the strong acid
c) Is Cu(OH)2 more soluble or less soluble in acid? Prove it! Determine the solubility of Cu(OH)2 in a solution of HCl at pH = 4.0. Show all work. (You may assume x is small). (4 pts)
I did part a. However, cant seem to figure out the equation for
part b and because of that I cant do my ICE table for part c. Any
help would be appreciated :)
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Superheated steam enters a turbine at 3 MPa, 550oC, and exits at
0.01 MPa.
a) If the process is reversible adiabatic (isentropic), find the
final
temperature (T2s), the final enthalpy (h2s) of the steam, and the
turbine
work (Wt,s).
b) What is Sgen for the above process?
c) If the isentropic efficiency is 90%, find the actual final
temperature (T2a)
and calculate Sgen?
d) Plot process (a) and (c) on a Ts diagram.
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what is the Palmgren-Miner rule used for? briefly please
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Air enters a compressor at 20 oC and atmospheric pressure, and exits at 200 oC and 0.8 MPa. The output stream flows at a linear velocity of 2 m/s, through an exit diameter of 10 cm. What is the power input to the compressor? (Answer: 16.7 kW)
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.Calculate the number of copper atoms in a 63.55 g sample of copper. .What is the mass in grams of 0.509 moles of AlCl3? .Which of the following 100.0 g samples contains the greatest number of atoms?
a. Magnesium
b. Zinc
c. Silver
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A bottle of commercial concentrated aqueous ammonia is labeled 29.89 % NH3 by mass, density = 0.8960 g/ml.
a. What is the molarity of the ammonia solution?
b. If 250 ml of commercial ammonia is diluted with water to make 3.0 L of solution, what is the molarity of the diluted solution?
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Give the raw materials,process description, flow sheet, engineering problems faced in the production of CUPRAMMONIUM RAYONS
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Suppose you now work for a small specialty chemical manufacturer. You are tasked with
providing recommendations for Sim software. You have narrowed it down to either of CHEMCAD or
ProSim Plus. Please provide me with a one page (200 words) summary to advise me which one to
purchase. I am looking for you to give me an understanding of what sim software is, and the advantages
or disadvantages of each for my application
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Using Antoine’s equation, derive an expression to calculate heats of vaporization as a function of the A, B and C constants in Antoine’s equation and temperature. Use the derived expression to calculate heats of vaporization of water and benzene at their boiling points and 1 atm pressure. Compare the results with tabulated values of water and benzene.
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(740 MBq) of 131I?
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