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Chemical-Engineering Questions
Starting with a 2-inch thick sheet of brass, we would like to process (produce) 0.5-inch thick...
A mutation has occurred in the DNA binding sequence for p53. The binding site is Pu-Pu-Pu-C-A/t-T/a-G...
If a diffusion coefficient of a protein is increased, what will happen to the location of...
The linear rate constants for dry and wet oxidation have very similar activation energies, but the...
A packed bed reactor has the reaction A --> B occurring. The rate law is –rA...
Derive the expression for the excess dimensionless entropy of mixing S E /kB as a function...
Find the pH and the concentrations of all species in the following solutions, each of 0.02...
For each of the following reactions, predict whether the equilibrium constant is greater than or less...
Discuss the significance of nitrogen analysis in water pollution control.
Heat, q, is energy transferred between a system and its surroundings. For a process that involves...
Q1) Methanol (50 %) and water (50 %) mixture is fed into a distillation column. The...
Q2) Consider 100 kmole/h of feed which includes 20 mole % ethanol in water. We wish...
In semiconductor manufacturing, the root causes of defects can be attributed to photolithography. Could you explain...
A reaction vessel must be sterilised prior to fermentation using superheated steam. Estimate and compare the...
What are the most critical steps during photolithography? Why?
135 moles of methane and 45 moles of oxygen are fed into a reactor: CH4 +...
Use a spreadsheet to create a Txy diagram from the benzene-chloroform system at 1 atm. Once...
Draw the predominate form(s) of tyrosine at the following pH values a. pH 5.0 b. pH...
The sherwood number for vapor transport from the surface of a high moisture food product to...
We are studying the corrosion rate between a piece of copper and a piece of zinc...
A distillation column is used to separate an ethanol-water feed into a high purity alcohol and...
Methane (CH4) and oxygen (O2) react in the presence of a catalyst to give formaldehyde (HCHO)....
Heat in the amount of 150 KJ is tranferred directly from a hot reservoir at Th...
The literature supplied by GE Healthcare, the manufacturer of Sephacryl resins, provides information concerning the fractionation...
Fro each ion-exchange column (DEAE, CM), an alternative approach, other than the use of 1M KCl,...
- Lets say that an empty fridge is 1 cubic feet in volume. The HVAC guy...
If air at 65 degrees Fahrenheit and 50% humidity enters a furnace which heats the air...
A young engineer in a chemical plant, where you are a Manager, was assigned to look...
Calculate the amount of heat necessary to change 200.0 g of ice at -15.0◦C to steam...
A specific enzyme exhibits substrate inhibition. Why would it be quite possible to increase the reaction...
The figure shows a flowchart for the production of potassium nitrate. The fresh feed consists of...
Describe the difference between folds and faults. Why are faults important in geology?
What three fluids are contained in reservoir rock? What is on top, middle, and on the...
Equal volumes of 0.180 M AgNO3 and 0.140 M ZnCl2 solution are mixed. Calculate the equilibrium...
The Industrial Transformation in the North, 1800-1850. This question is pertaining to the 1800's era in...
Compound A is released to a groundwater aquifer that has a volume of water of 109...
Matlab Code A mass balance for a pollutant in a well-mixed lake can be written as...
Determine the amount of plasticizer (weight fraction) required to lower the Tg of PVC to 30oC....
Q1. The reaction A + B-> C was studied in a constant volume batch reactor. The...
Calculate the fraction of monomer units for a copolymer of poly(styrene-co-butylacrylate) given that it is 55%...
a stream of aqueous methanol having 45 mol % ch3oh is to be separated into a...
The heart is supplied with 5L/min of blood from the vena cava (assume one pipe with...
Estimate the flash point of formaldehyde at 2.0 bar.
Remember that pressure drop in piping vary as the diameter is changed, assuming the mass flow...
If air flowrate at STP is 4 cubic feet per minute, what is the mass flow...
If oxygen flow rate at STP is 4 cfm, what is the mass flow rate? Flowmeter...
Calculate the standard heat of reaction at 1000oC for the following reaction: C2H4(g) + 1/2O2 (g)...
Can you please answer following questions with specific answers ; Pleases specific answers without websites: 1/...
Problem. A cylindrical specimen of a hypothetical metal having a diameter of 7.671 mm and a...
Fish and wildlife managers have determined that a sudden temperature increase greater than 5°C would be...
Using Raoult's law for water and Henry's law for nitrogen, calculate the pressure and gas-phase composition...
Question 2 (Excel) A single stage RO desalination system has the following design data: - Water...
a) A closed tank of fixed volume initially contains air at 200 kPag (gauge) pressure and...
Fuel oil which consists of hydrocarbon, CxHy is burnt in a combustion chamber at 25 °C....
A storage tank has a Diameter of 6 m and a height of 3 m. The...
A finned heat exchanger tube is made of aluminum alloy (k=186W/m· K) and contains 125 annular...
Annular steel fins (k=56.7W/m· K) are attached to a steel tube that is 30mm in external...
1. what is the difference between a vacancy defect in a metal and a schottky defect...
A mixture of 100kg mol which contains 60 mol% n-pentane (A) and 40 mol% n-heptane (B)...
How do you know whether to use the saturated steam tables or superheated steam tables? How...
Water is used to cool R-134a in the condenser of a heat exchanger. The refrigerant enters...
At elevated temperatures, solid sodium chlorate NaClO3decomposes to produce sodium chloride, NaCl, and O2 gas. A...
A diffusion couple, made by welding a thin one‐centimeter square slab of pure metal A, to...
Synthesis of Nitrobenzene Objective Introduction and background
Benzene and water are virtually immiscible. What is the bubble pressure of an overall mixture that...
Briefly discuss the difference between “plug flow” and “perfect mixing” and give examples of reactors which...
Fresh apple juice contains 75% water flowing at a mass flow rate of 200 kg/h. The...
We recently did a lab testing the reaction between KMnO4, H2C2O4 and H2O. These were the...
An extremely corrosive chemical is to be converted to a less noxious compound using an endothermic...
Why is intenral energy of an ideal gas only changed by gas temperature and not by...
It's qustion about Chemical processes Q. Saad greens are washed to remove dirt, bugs, and other...
What are the raw materials required to make erucamide and can you estimate the cost of...
It is desired to absorb ammonia from air into water producing an outlet gas stream with...
Xylene (C8H10, ρ = 704 kg/m3 ) is flowing in a pipe with a diameter of...
Two liquid streams are flowing at constant rates into a blender. One is benzene, which flows...
1) Calculating Number of Stages in Counter-Current Stripping with Tray Towers: A counter current steam stripper...
It is desired to produce an aqueous solution of nitric acid (HNO3) at 5% by weight,...
Consider the benzene (1) + ethanol (2) system which exhibits an azeotrope at 760 mmHg and...
Find the ClO− concentration of a mixture that is 0.340 M in HF and 0.100 M...
Separations Question It is desired to recover atleast 95% of ethanol from a mixture of ethanol...
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