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Chemical-Engineering Questions
An evacuated 150-L tank is connected to a line flowing air at room temperature, 25oC, and...
3. One mole of liquid m-Xylene at 25°C is to be converted to saturated vapor at...
When using radiation shields, if the emissivity’s of all surfaces are equal, then the use of...
A continuous and aligned carbon fiber-reinforced composite consists of 60% by volume of high-strength carbon fibers...
Which one of the following is NOT a kind of colloidal material in the natural aquatic/terrestrial...
A wastewater stream is introduced to the top of a mass-transfer tower where it flows countercurrent...
The work needed to isentropically compress 2kg steam at 400kPa, 400 degrees Celsius to 2 MPa...
what are the differences between dynamic and positive displacement pump
Two kmol of ethane (C2H6) is burned with an unknown amount of air during a combustion...
what is the effect of viscosity on pressure drop(with reason)?
Two kmol of ethane (C2H6) is burned with an unknown amount of air during a combustion...
Let’s say you have 3 UV active spots in the crude material and co-spot TLC plate....
The two tubes in a bubbler system are placed in a liquid with a density of...
10 ml of liquid H2O and 10 ml ethanol are mixed at 25 oC and 1...
Given the equilibrium diagram P-x1y1 for benzene (1)-toluene (2) mixture at 100 oC. Estimate the approximate...
Consider a geothermal unit that controls a house temperature by using underground as a heat source...
A single-stage liquid/vapor separation for the unknown molecule (1) and molecule (2) mixture with mole fraction...
Consider an operation that applies mechanical work to transport liquid water while increasing its pressure. Choose...
The absorption refrigeration cycle is devised by replacing the mechanical energy of the compressor in the...
What does it mean by equipment of upstream vs equipment downstream?
A large volume of pure air is flowing at 101.325 kPa and 300 K over a...
The following heat engine operates between heat reservoirs at 750 K and 300 K, respectively, and...
Air is cooled from 300 K to 273 K as it flows steadily through a duct....
Nuclear Fuel Cycle Question: What is the value of uranium utilization in LWRs for a once-through...
Nuclear Fuel Cycle Question: A nuclear plant operated for a year with a 69% capacity factor....
What is the approximate mean velocity gradient, G, in a 10 m long rough pipe under...
Identify which Nanostructured Material/BMG can processed using Nuclear Irradiation Plasma Processing
One thousand barrels of a 40°API crude are blended with one thousand barrels of a 20°API...
Would you expect a mixture of ethanol/water to have a boiling point pressure greater than or...
An aqueous solution containing 0.2M of sodium hydroxide is allowed to equilibrate with the atmosphere in...
a 1000 gal vessel, containing air, is to be vacuum purged to a limiting oxygen concentration...
A100 mol/h of feed mixture with 20% pentane, 25% hexane, 30% heptane and 25% octane is...
At 35°C a liquid solution containing 40.5 mol % ethanol and 59.5 mol % methylcyclo-hexane exerts...
A lubricating line with e/D = 2 x 10-5 has an inside diameter of 0.5 in...
The isothermal and isobaric gas phase reaction A → B + C follows an elementary rate...
Does steam flow from top to bottom or from bottom to top inside a heat exchanger?...
The following parallel liquid-phase reactions are known to occur in a 0.3 m3 plug flow reactor:...
The following table lists molecular weight data for a polypropylene material. Molecular Weight Range (g/mol) xi...
The breakthrough time of an adsorber, which contains 10,000 lb of activated carbon whose adsorption equilibrium...
Four samples of steel, lead, alcohol and glass all have the same mass and are all...
A student observes that a 126 mL dry flask with a foil cup weighs 50.162 g....
let's say that I will be cooling a crushed limestone for cement production from 300 celsius...
mixture of gases contains the following composition by mole: O2 20 % CO 35 % CO2...
Find the time needed for 76% conversion in a constant volume batch reactor for A -------->...
A closed vial with a volume of 0.01 m3 stands in an atmospheric environment at 90...
Concrete curing is “the process of maintaining adequate moisture in concrete within a proper temperature range...
4. A biochemist carries out an enzymatic activity assay of alcohol dehydrogenase at 37°C using 200...
A 5-litre cylinder contained 10 moles of oxygen gas at 27°C. Due to sudden leakage through...
Find the change in reversal potential for Ca2+ ions caused by a two-fold increase in extracellular...
A gas mixture at 15.0 °C and 105.0 kPa is fed to a mixing unit. The...
Molecular Weight Range (g/mol) xi wi 19000 - 34000 0.04 0.01 34000 - 49000 0.07 0.04...
Why does the ceramic coating on non-stick metal wok tend to crack and peel after repeated...
what is the ideal humidity range for the production of powdered limestone for cement?
Determine the pH and the concentration of all species in a 1.25 M H2SeO3 solution. You...
The potential energy difference between the tip of an electron scanning microscope and the surface is...
What length of 0.050-m outside-diameter vertical tube is required to condense 0.15 kg/s of saturated steam...
An ice rink (circular) is enclosed by a hemispherical dome. The ice and the dome are...
Define and describe the Winsor type classification of emulsions.
In dimensional analysis, if i only have on pi group how would i solve the question?...
1. Why is hydrogen sulfide more soluble than carbon dioxide in the various glymes used in...
Assume the following chemical reactions: ? ⇌ ? ⇀ ? The rate equations are: ?? ??...
In the heat exchanger, in theory, as the flow rate of the cold-water stream increases, the...
An unknown chemical is found in the lab, and thankfully, you were able to make out...
Explain how to break a flood in a distillation column.
How can you tell if a set of kinetic data is a candidate to be tested...
when designing pressure relief valve, at what circumstances should I use spring or ruptured disc? And...
7.19 Blood flows through a membrane oxygenator at a rate of 5000 mL/min−1. The entering pO2...
Calculate the osmotic pressure of the following solutions: a) 20 g/L of NaCl in water at...
Partial oxidation is carried out by passing air with 1.2 mol percent hydrocarbon through a 1/2...
(A) Consider the process: Bruce Wayne ⇌ Batman This reaction is catalyzed by the enzyme GOTHAM,...
Dimensions of a room are about 10mx10mx3m. Assume the air inside the room is initial at...
The consecutive liquid phase reactions A (k1,r1) −−−→ B, B (k2,r2) −−−→ C; r1 = k1C2...
How much work (kJ) is done by an engine which contains 1 kg of water that...
Why can an atomic absorption spectrometer be so specific for one element? Explain the theory and...
An isothermal flash unit is to be used for the separation of any mixture into liquid...
Assume you have a chemical compound (HA) that is a weak acid which changes color upon...
3) The corrosion of iron is an electrochemical process that involves the standard reduction potentials given...
a) Calculate osmotic pressure for 6000 mg/L NaCl at 25 deg C with osmotic co-efficient of...
On a hot summer day, the temperature is 36°C, barometric pressure is 763 mm Hg, and...
Calculate the angular dispersion (delta theta) between light rays with wavelengths of 512.23 and 512.26 nm...
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