Assuming a source-free region, derive the diffusion equation V²E = µo JE ot
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Q: 9. Molecular diffusion coefficients are typically mechanical dispersion coefficients O higer than O…
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Q: An industrial firm supplies compressed air cylinders of volume 0.25 m3 filled to a pressure of 20 ×…
A: PV=nRT n=PVRT
Q: Show that the Driven Diffusion Equation can be mapped onto the regular Diffusion Equation. Driven…
A: To show that the Driven Diffusion Equation can be mapped onto the regular Diffusion Equation, we…
Q: 9. Diffusion across a one-dimensional slab C₁=Co x=0 a) C. (z) b) Ci(z) = c) C₁(z) = d) C.(z)=(1-1)…
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Q: At what pressure will the mean free path in room-temperature (20°C) nitrogen be 1.3 m ?
A: Given : mean free path, λ= 1.3 m Temperature, T = 20°C = 20 + 273.15 = 293.15 K For N2 molecular…
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A: Write the expression for diffusion. D=kT6πrη
Q: diffusion
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Q: Molecules can rapidly diffuse across living cells. If the width of cells is increased by a factor of…
A: This question can easily be solved by applying the
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Q: A balloon is inflated to 2.50 L with nitrous oxide gas, N20, at a particular initial temperature and…
A: To solve the question, we will use the combined gas law: PVT=constant
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Q: Two molecules are diffusing in a water solution held at the same temperature T. Molecule A has three…
A: In order to solve this question we need to relate mean free path L , mass of molecules m and the…
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A: Given that the diffusion constant D is 1.00×10–6 m2 /s .
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- ThanksA room is 10.0 m by 7.5 m by 2.7 m is filled with air at 22oC and 1 atm. The average molar mass of air is 28.8 g/mol. Find the number of moles of air to fill the room and the weight of the air in kg.(1) Hydrostatic balance states Op Əz Equation -1 where p is pressure, z is altitude, p is density and g is the acceleration due to gravity. It can be shown that the reciprocal of hydrostatic balance also applies. That is Equation -2 дz Әр = -Pg, = 1 pg Use the ideal gas law (p = pRT, where R is the gas constant for dry air and Tis temperature) to eliminate p from (2). (2) Under geostrophic balance, the following balance is approximately satisfied Equation -3 fu=-g ¹ (3) where f is the Coriolis parameter, u is the zonal wind, y is meridional distance and z is altitude. (Note that the derivative on the right hand side is taken at constant pressure.) Differentiate (3) with respect to p, and use your expression from part 1 to obtain an expression relating du/ap and T/ay. This expression is called "thermal wind balance".
- An industrial firm supplies compressed air cylinders of volume 0.25 m3 filled to a pressure of 20×106 Pa at 17 ºC. Calculate the number of moles of air in each cylinder.A deep-sea diver should breathe a gas mixture that has the same oxygen partial pressure as at sea level, where dryair contains 20.9% oxygen and has a total pressure of 1.01×105 N/m2. (a) What is the partial pressure of oxygenat sea level? (b) If the diver breathes a gas mixture at a pressure of 2.00×106 N/m2, what percent oxygen shouldit be to have the same oxygen partial pressure as at sea level?Presents the diagram of the problem, necessary formulas, clearance and numerical solution: The coefficient of linear expansion of glass is 9x10−6 ◦C −1 . A pycnometer (flask used to determine the relative density of liquids) has a capacity of 50 mL at 15 ◦C Calculate its capacity at 25 ◦C
- Assume that a raindrop has a volume of 0.05 cm^3 and you need an Avogadro's number of raindrops to fill up the cubic water tank. What is the length of the edge of the tank?At what temperature (in Kelvin) will the diffusion coefficient for the diffusion of species A in metal B have a value of 5.92 × 10-16 m2/s, assuming values of 2.8 x 10-6 m?/s and 225,000 J/mol for Do and Qd, respectively? i KThe gas constant R has the value 287 J/Kg * K for dry air. Using the ideal gas law (P = PanyRT): a) Find the density of dry air at 72.05 "F with a pressure of 1095 mb. b.) Find the density of molst air at the same pressure and temperature if the relative humidity is 60%. HINT: (for o) stick with Si units (for b) Find e, given T(see lecture slides). Find e given RH. Find pos from: P 0.378e 0.378e Pmoist 1 or Pmoist = Pary RT P