Consider the connection between galvanized steel and non-galvanized steel components. Explain the corrosion process.
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For a mixture of 20% H2, 30% H2Ov, and 50% CO2
by volume, determine the mixture molecular weight and
enthalpy at 350 K.
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A 1 m long stainless steel wire has electrical conductivity of (4.05x10^6) Ωm−1, and end-to-end resistance of (2.1680x10^0)Ω What is the radius of the wire in m?
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The average flow velocity is 0.305 m/s. At the source, the BOD concentration is 10.0 mg/L and the dissolved oxygen deficit is 0.0 mg/L. From field sampling, de-oxygenation (kd) and re-aeration (ka) rate constants are estimated to be 0.6 d-1 and 2.0 d-1, respectively.
Find the critical distance, the critical deficit, and the time at which the minimum D.O. occurs
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What does the neural doctrine state, as compared to the reticular theory?
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Which is the best thermodyinimc package to preduce styeren from ethylbenzene by dehydrogenation and why?
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How diffusivity and mass transfer resistance linked to each other?
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The exit stream of a beer fermentation system (F) contains ethanol, water and fermentation solids and has a mass flow of 1200 ton/day. This stream is fed to a separator from which has to outlets: a stream of 300 ton/day of solids (S) and a stream (A) that is fed to a distillation column. From the top of the column, a flow of 750 ton/day of beer containing 12.5% ethanol and the balance of water is released; the bottom flow contains water with 1% of solids. The beer contains 96% of the ethanol fed to the process.
a) Draw a process diagram.
b) What is the composition of stream F, in mass percentages?
c) Find the mass flow in kg/h and composition the stream (A) entering the distillation column.
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A sweet, water-saturated natural gas enters a compressor at 50 psia and 100F and leaves at 200 psia and 300F.
a. Is there any chance of water condensing in the compressor? If so, how much? Answer in lb H2O/MMscf gas compressed.
b. Estimate the mole fraction of water vapor in the gas stream leaving the compressor.
c. The natural gas is then cooled to 190 psia and 100F before entering the second stge of compression. Should a vapor-liquid scrubber be installed between the intercooler and the second stage of compression? If so, how much water (lb H2O/MMscf) will be removed? Will any hydrocarbon liquids condense?
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A mixture of saturated liquid water and saturated steam at T = 120 °C has a specific enthalpy of 2000 kJ⁄kg. What is the quality of this mixture?
if you could show how to do it, that'd be great.
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how does the Ascorbic Acid Method (SPR) work?
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Fractional crystallization produces a pure 1st crop and a less pure 2nd, why does this occur? Explain
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A stainless steel manufacturer states, "Aluminum fastening should not be used with stainless steel." could you use stainless steel fastenings with aluminum? Explain.
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How to differentiate between condensable and non condesable
gases ?
For example we have a process for benzene and methane production be
reacting hydrogen and tolune , we would like to find the boiling
point for toluene and benzene so the professor considered toulene
and benzene as a condensable gases why ?
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