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Chemical-Engineering Questions
1. Enter your answer in the provided box. 1. What is the equilibrium constant for the...
The standard heat of combustion for H2 to form liquid water is -285.84 kJ/mol. The standard...
The irreversible gas-phase reaction A + B ----> C is carried out in an isothermal (400...
A mixture of n-heptane and n-hexane containing 25 mol% n-hexane is vaporized at a pressure of...
Calculate the adiabatic flame temperature of n-propane, n-octane, and coal (modeled as graphite) in 30% excess...
(a) From the data, plot the enthalpy of 1 mole of solution at 27ᵒC as a...
Consider a fluid between two parallel plates. The fluid is at rest. At t=0, the bottom...
A certain combustion engine is air-cooled and has a cylinder constructed of cast iron (k =...
Dinitrogen tetroxide partially decomposes according to the following equilibrium: N2O4(g) → 2NO2(g) A 1.000-L flask is...
Obtain a formula for the mass flow rate of a Newtonian fluid flowing down an inclined...
The gas phase reaction AàB occurs on the surface of a catalyst in the form of...
A humid air stream flows into a condenser that also compresses the air stream. The inlet...
A) What is the LFL and UFL of methane at 700°C? Pressure is ambient. B) What...
Distinguish the difference between a hazard and a risk?
To harden a steel sphere having a diameter of 50.8 mm, it is heated to 1033...
Spherical particles 1mm in diameter are to be fluidized with water at twice the minimum fluidization...
(15%) An unknown amount of radioactive gold is deposited as a thin layer on one end...
(a) Explain in detail how bainite differs from martensite and from pearlite. (b) How do upper...
Design a heat exchanger (condenser) to heat up 340,000 Lb/hr boiler feed water in a power...
1-Find the grams of KNO3 needed to add to a 0.02 mol kg-1 solution of KNO3(aq)...
Can you tell me the source of error in permanganometry titration(determine ferro ion in sample) ?...
A gas absorber is to reduce the concentration of an impurity in a gas stream by...
What are the similarities and differences between electrolysis and electrowinning ?
A cyclone is designed with an inlet width of 15 cm and eight (8) effective turns....
Describe the spreading behaviour you would expect when a drop of benzene is placed on a...
Can different amount of work be needed for same thermodynamical state change? What about different amount...
Calculate the diameter of the silver wire, given that the voltage across the wire is 3.1V....
Transport Phenomena/Mass Momentum Heat transfer problem An incompressible, Newtonian fluid inside a tube flows downward due...
Explain to me in breif and simple way/ fick's first and second laws
Objectives: To be able to derive the necessary rate equations for multistep reactions using rate limiting...
Using the van der Waals EOS for n-butane, a.Calculate the a and b parameters . b.Calculate...
How many phases are in intimate contact at the PEMFC cathode at 120 oC and 1...
Water flows at 20 cm3/sec through a long straight tube that has an inner diameter of...
1) 30 kg of wet solid material which 5 kg water was dried for a total...
An absorber is to remove 99 percent of solute A from a gas stream containing 4...
A gas flows through a long pipe of constant diameter. The outlet of the pipe is...
For a real particle of an equilateral triangular shape of 1 mm thickness and edge length...
A 0.25 mol sample of a weak acid with an unknown pKa was combined with 10...
A continuous, steady-state distillation column with a total condenser and a partial reboiler is separating methanol...
Canada produces about 1.5 million tonnes of chlorine per year by the electrolysis of brine (NaCl(aq))....
Why extraction is preferred to distillation? And What are the situations where extraction can be used...
In the absorption of component A (molecular weight = 60 g/mol) from an airstream into an...
A compound in the atmosphere has a residence time of 10 yr, and its concentration in...
Why do most polymer blends exhibit lower critical solutions temperatures (LCST), rather than upper critical solution...
A distillation column with a total condenser is separating acetone from ethanol. A distillate concentration of...
Why oxygens contained in biodiesels can be much effective in the complete combustion reaction compared with...
Water at 65 Degrees F and 20 psia is mixed steadily with saturated water vapor at...
Determine the pressure, specific volume, enthalpy, and internal energy of a wet steam at 230 degree...
How many mL of a 100 mg/dL Ferrozine solution are needed to complex 5.5×10−8 moles of...
The Voight Model simulates the behavior of a viscoelastic polymer by placing a hookian and a...
What post-fermentation steps are performed after fermentation to make the beer acceptable for human for consumption?...
What post-fermentation steps are performed after fermentation to make the beer acceptable for human for consumption?...
Describe two sources of phosphorus that can be controlled to reduce cultural eutrophication.
A substance is under conditions of pressure and temperature below the critical point, has 50 °...
Minimum number of trays 100 kmol/hr of a feed of 60% benzene and 40% heptane is...
A 430. mL solution of 0.230 M HBr(aq) is mixed with a solution of 225 mL...
An aqueous caustic stream mixture containing 20% (by weight) sodium hydroxide (NaOH) is fed to an...
calculate the temperature in which the vapor pressure of n-decane corresponds to a stoichiometric vapor /...
Ammonia gas enters a reactor with 30% more dry air (no water vapor) than is required...
4NH3 + 5O2 --> 4NO + 6H2O 1. Nitric acid is made by first reacting ammonia...
Suppose the following atmospheric altitude vs. temperature data have been collected. Altitude (m) Temperature (oC) 0...
I know that G=H-TS but my professor in my thermodyanimcs class wants the gibbs free energy...
A stream of hydrocarbons contains 80% by weight hexane and 20% benzene point it is desired...
Pressure initially at 5 MPa result in a fug.acity of 3.86 MPa and a fugacity coefficient...
A piston-cylinder contains 25 g of saturated water vapor and kept at 300 kPa. We add...
Assume that the concentration of lead (Pb+2) in both Lake Superior and Lake Erie is zero....
An orthorhombic crystal has three orthogonal low energy surface orientations with surface energies of γ(100)=500; γ(010)=300;...
please answer all equistion 1. Find values of residual enthalpy for ethylene at 400 K and...
The Zik-Zak Corporation recently bought a heat exchanger to cool 1000 lb/h of a light oil...
A gaseous mixture of propane and methane has density ? = 4.84 g L -1 at...
1 mole methane gas (NOT ideal gas) isothermally expands from initial pressure of 5 bar to...
In this exercise we will consider two coal-fired power plants and a solar thermal plant, in...
a mixture of 65 mol % n hexane and 35 mole % n octane is fed...
A dehumidifier is used to remove water from air, to deliver dehumidified air with a water...
The irreversible gas-phase non-elementary reaction A + 2B ---> C takes place in an isothermal (227...
A processes that generates NO burns NH3 with oxygen fed with 20% excess NH3 +O2 à...
In a production plant of sulphuric acid a catalytic converter is used to perform the oxidation...
PbCl2 (s) ==== Pb2+ (aq) + 2 Cl- (aq) Record your observations for the following changes...
In a storage tank, a mixture liquid containing 50mol% methanol and the rest ethanol is kept...
How many grams of solid are present at equilibrium for a mixture that contains 47 grams...
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