Estimate the hydrostatic pressure applied in a reverse osmosis system working at 10°C to maintain a flux of 6x10-3 kg/m2.s. The feed solution is 10% (by wt) CaCl2 solution. (rejection of the membrane is 0.94 and water permeability constant is 5.0x10-4 kg/s.m2.atm)

Q: In an open vessel with a diameter of 0.3 m, there is water that evaporates into the atmosphere at…

A: Given = Diameter = 0.3 mT = 350Kx = 1 mmheight = 5 cmPAo = 41.8 kN/m2 (350 K)PT = 101.3 kN/m2DAB =…

Q: A meat processing industry has a cold room for handling products whose outer wall is coated with a…

A: Given data: Temperature of air = 5 0C %RH = 60 % Dimension of wall = 3 m × 2 m Thickness of…

Q: For steady state diffusion of a gas in a stagnant layer of another gas, the concentration decreases…

A: The way in decrease in concentration of the gas in stagnant layer is to be mentioned.

Q: Consider a 1000 m^2 impoundment, 1 m deep. Benzene is present at 100 micrograms/L when the wind…

A: Given that, Area of impoundment, A=1000 m2  Depth, h=1 m Speed of wind over surface, u=2 m/s…

Q: Pure hydrogen gas at 2.0 atm abs pressure and 27 °C is flowing past a vulcanized neoprene rubber…

A: Thickness of rubber slab = 5 mm Pressure of hydrogen gas=  2 atm , or 202.65 kPa Temperature = 27o…

Q: batch centrifugal filter

A:

Q: A dilute solution of solute A in solvent B is passed through a tubular-membrane separator, where the…

A:

Q: 5) A test tube contains 10 cm of salt water having density 1.01 g/cm^3 and 10 cm of fresh water is…

A: To estimate the time it will take for the fluid in the test tube to reach nearly uniform salinity…

Q: Ammonia diffuses through Nitrogen gas under equimolal counter diffusion at a total pressure of 1.013…

A:

Q: The following figure shows the brine circulation in Multi-Stage Flash (MSF) desalination process.…

A: The Multi-Stage Flash (MSF) desalination process is a method used to produce freshwater from…

Q: A dilute solution of solute A in solvent B is passed through a tubular-membrane separator, where the…

A:

Q: Consider a slice of suspension between heights z and z+dz, use Stokes-Einstein law to show that the…

A: To show : The flux into the slice due to diffusion is balanced by the flux out of the slice due to…

Q: The porosity of a rock sample is 0.155, and its bulk volume is 85 cm³ at the ground level at ambient…

A:

Q: Vapour and the partial press. of water is 0.8 atm. Derive the equation for this case and calculate…

A: Given T=303 K P=1 atm l=0.02 m KG=3.425 x 10-2 kmolm2 s press PA1 =0.8 atm  PA2=0 PB1=0.2 atm  PB2=1…

Q: 23.) Nitrogen gas concentration across a 2 mm thick palladium sheet changes by 4 kg/m°. Considering…

A: Given data: Thickness of palladium sheet = 2 mm Concentration change of N2 gas across the palladium…

Q: A piece of Al with a surface area of 2.5 m2 is anodized to produce a film of Al2O3 that is 23 mm…

A: Thickness=23*10-6m Surface area=2.5m2 Density=3.97g/cm3 To Calculate the amount of charge flow and…

Q: 1. A sheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200°C and is permitted…

A: Thickness of sheet = 1.5 mm Diffusion coefficient of nitrogen in steel =  Diffusion flux =…

Q: Distillation uses thermal energy as a separating agent. O True False QUESTION 4 For a medium moving…

A: Separating agent: Is the addition of heat to facilitate the separation of two chemical species.…

Q: A dilute solution of solute A in solvent B is passed through a tubular membrane separator, where the…

A: Given information:   In a tubular membrane separator, a dilute solute of solute A and solvent B is…

Q: The effective use of a drug is achieved by its controlled release, and film-coated  pellets,…

A: Given: The effective use of a drug is achieved by its controlled release, and film-coated  pellets,…

Q: It is desired to determine the mass transfer coefficient during the maturation of a cylindrical…

A: Given data: Diameter of sample = 10 cm Water loss from the cheese slice = 3.6 g Time taken to loss…

Q: 1. Heating of a Spherical Particle Consider a solid spherical particle of radius R and thermal…

A: First consider a sphere of radius R and the thermal diffusivity α Now to get governing equation for…

Q: When both solute and solvent are liquid, the diffusion coefficient has higher values ​​than in…

A: Given: When both solute and solvent are liquid, the diffusion coefficient has higher values ​​than…

Q: Ethanol, inner surface coated with naphthalene, 50 mm inside diameter and 3 m long It flows through…

A: Diameter of pipe = 50mm Length of pipe = 3 m Temperature of pipe = 20 C kL = 2.26 x 10^-5 m/s…

Q: Nu = 0.5Re0.8 Pr0.4.

A: Heat transfer takes place by three different modes and 1 of the mode of heat transfer out of 3 is…

Q: As part of a process to fabricate materials with ordered pore arrays, the diffusion‐limited solvent…

A: No of cylindrical pores = 16 Diameter of each pore = 0.1 cm Depth of each pore = 0.5 cm Maximum…

Q: For a steady condition with constant properties and for one dimensional 2² T 1 ƏT the general form…

A: tHE HEAT DIFFUSION EQUATION IS IN THE FORM OF:  d2Tdx2 +d2Tdy2 +d2Tdz2 = 1α dTdt  For one…

Q: amount of energy released

A:

Q: An aqueous solution containing 10 kg of solids per cubic meter of solution is filtered through a…

A: Given data: An aqueous slurry of CaCO3 is to be filtered with the filter press.

Q: VAPOR – LIQUID DIFFUSION by using Arnold’s cell What is the use of the blower in the Arnold Cell?…

A: To Explain :a) What is the use of the blower in the Arnold Cell?b) Discuss the molar flux of the…

Q: A dual-medium filter is composed of 0.3 m anthracites (mean size of 2.0 mm) that are placed over a…

A: Given data: Diameter of anthracites particle = 2 mm Length of anthracites layer = 0.3 m Diameter of…

Q: Linear Growth Regime B X =1 A Diffusion-limited Regime X = VB 1 Oxidation Time Figure 1 Comment the…

A: The diffusion of gas molecules (oxygen or water) through any oxide film is analyzed with the help of…

Q: Pure hydrogen gas travels across a 7 mm thick vulcanised neoprene rubber slab at a pressure of…

A: Given data: Thickness of rubber slab = 7 mm Pressure of hydrogen gas= 202.65 kPa Temperature = 300 K…

Q: A wet cake of solids has a thickness of 0.8 cm is dried by blowing air with a moisture content of 5…

A:

Q: 17.5.* Assuming that the transition from a laminar to a turbulent boundary layer takes place at a…

A:

Q: A sheet of steel 1.7mm thick has nitrogen atmospheres on both sides and is permitted to achieve a…

A: Given that DAB= 7.55 X 10-11 m2/sdiffusion flux ,J = 1.5 x 10-7kgm2CA = 5.17 kgm3CB = 2.5 kgm3

Q: Consider a cylindrical vessel with radius 200 mm which contains a settling suspension composed of a…

A: A cylindrical vessel is given with:radius, ,solvent density, ,dynamic viscosity of solvent, ,mean…

Q: It has been found that in modern designs of artificial kidneys (thin membranes and vigorous stirring…

A:

Q: Find the diffusion coefficient of the CO and N2 gas couple at 580 K and 4 atm conditions

A: Write the expression for the Diffusion coefficient as follows: DAB = 1.86×10-3T321MA+1MBPTσAB2Ω…

Convective Mass Transfer between Phases

Mass transfer means the transport or movement of mass using streams, phases, components, and so on from one location to another.