A plate of iron is exposed to a carburizing (carbon-rich) atmosphere on one side and a decarburizing (carbon-deficient) atmosphere on the other side at 700 C (1300 F). If a condition of steady state is achieved, calculate the diffusion flux of carbon through the plate

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: For the carburizing process of the titanium plate, the temperature of which needs to be heated to a…

A: To determine the below conditions, we will use the error function. This is denoted by "erf". This is…

Q: A cylindrical tube connects two large gas tanks (Tank-1 and 2). Both tanks contain mixture of carbon…

A: Given: The partial pressure of the first tank, The partial pressure of the second tank, The length…

Q: Estimate the liquid phase diffusion coefficient for the following systems at 25oC: 1. Toluene in…

A: Note: We are authorized to answer three subparts at a time, since you have not mentioned which part…

Q: An enzyme is immobilized uniformly in a gelatin slab (thickness: L and area: A). One side is in…

A: GIven,

Q: Knowing that the diameter of the NO gas molecule is 459 pm, determine the viscosity and the…

A:

Q: In the mass transport theory, the mass flux j is generally given as, j = -pDVw Show that for a…

A:

Q: Hydrogen in solution in a thick slab of nickel is removed by subjecting one face of the slab to a…

A: Given, The diffusion coefficient of hydrogen in nickel is DH = 7.77×10-7exp-41200RT m2/s   The…

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 very large tank is made of FCC iron sheet. Hydrogen is stored inside the tank at 900 ° C. Due to…

A: Given Wall thickness ∆t=5 mm Area A= 5 m2 Time t=90 days Hydrogen concentration on inner…

Q: A quiescent body of water has a depth of 600 mm. The DO level at the bottom after 16 days is 3.5…

A: The DO of the water body is to be determined.

Q: One surface of a 285 K and 2.0 mm thick urea (A) - ethanol (B) solution, an organic liquid is in…

A: Temperature = 285 K Thickness of film = 2 mm Concentration of urea in ethanol = 3 % by weight…

Q: Compare the diffusion coefficients of carbon in BCC and FCC iron at the allotropic transformation…

A: a)diffusion coefficients of carbon in BCC and FCC iron at the allotropic transformation temperature…

Q: A membrane can separate gas mixture because different gases have different permeability through the…

A: The mixture of gases can be separated by separation membrane on the basis of different permeability…

Q: Estimate the diffusion coefficient for methyl phenyl sulfide in water at 25°C.

A: As per the question given , The temperature of the methyl phenyl sulphide is 25 degc = 298 K We need…

Q: A plate of BCC iron is exposed to a carburizing (i.e, carbon-rich atmosphere) on one side and a…

A: Given: Temperature = 700°C=700+273K=973K position 1(z1)=2mm=2mm×m1000mm=0.002m position…

Q: The diffusion of a species in a mixture happens because (A None of the choices B there is a reaction…

A: Diffusion is the phenomena of mass transfer between two points by virtue of some driving force which…

Q: Carbon is diffused on the surface of a steel plate by carburization heat treatment. Steel contains…

A: Given data: Steel contains 0.20% carbon carburization process is applied at 1000oC in methane gas…

Q: ) To provide a diffusion barrier that prevents reactions between nickel and tantalum, a layer of…

A: Given data: Flux of nickel atoms = 1.574 × 1012 atoms/cm2.s Diffusivity of nickel ions in MgO= 4 ×…

Q: A sheet of steel 1.9mm thick has nitrogen atmospheres on both sides and is permitted to achieve a…

A: Given that  thickness = 1.9 mm DAB = 7.55 X 10-11 m2/s diffusion flux ,JA =1.5 x 10-7 kg/m2s CA =…

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: A cylindrical tube connects two large gas tanks (Tank-1 and 2). Both tanks contain mixture of carbon…

A: Given Data  The cylindrical tube connects two large tanks (Tank 1 and 2). The tanks contain CO2 and…

Q: A sheet of steel 1.5mm thick has nitrogen atmospheres on both sides and is permitted to achieve a…

A: Given that  thickness = 1.5 mm  DAB = 6.05 X 10-11m2s JA = 1.5 x 10-7kgm2sCA = 4.97CB = 2.5 kg/m3

Q: Since a gas X diffuses 1.25 times faster than CO2(g), find the molecular weight of gas X and…

A:

Q: A steel machine part is to be carburized in a furnace. The steel initially has a carbon content of…

A:

Q: Sherwood Number relates the mass transfer coefficient to mass diffusivity. It is known to be…

A: Given: Sherwood number is directly proportional to the length of diffusion L. It is related to the…

Q: A plate of iron is exposed to a carburizing (carbon-rich) atmosphere on one side and a decarburizing…

A: Given: XA=4 mm=0.004 mXB=9 mm=0.009 mCA=1.1 kg/m3CB=0.5 kg/m3DAB=3*10-7 m2/sec let us calculate…

Q: Which of the following statements relating to the sintering of ceramics are false? 1. The driving…

A: Sintering of ceramics: It is a process in which particles fuse together for forming one solid mass…

Q: 20.) Diffusion does not have an effect on_ a) Doping in semiconductors b) Production of alloys c)…

A: The diffusion process is used in many industries such as in the catalytic process, sintering…

Q: A long glass capillary with a diameter of 0.1 cm is in contact with water on one side and dry air on…

A: Diameter of tube = 0.1 cm Vapor pressure of water vapor at 20 0C = 17.5 mmHg Diffusivity of water =…

Q: Assuming that a silicon wafer is diffused with gold using a constant-source diffusion with a surface…

A: Given: Diffusion coefficient of gold at 1000°C, D = 4 x 10-7 cm2/s The surface concentration of…

Q: With a porous membrane known to work in the Knudsen area; Knudsen diffusion a. H 2 / N 2 b. Ideal…

A: Knudsen diffusion takes place when the scale length of a system is smaller than the mean free path…

Q: In this type of Fickian diffusion, the diffusing species is moving through a "stagnant" bed of…

A: Unsteady-state Diffusion- it is the rate of diffusion which is also a function of time unlike steady…

Q: A quiescent body of water has a depth of 600 mm. The DO level at the bottom after 16 days is 3.5…

A: Let, dissolved oxygen (DO) be represented by ‘A’.   Since the surface of the water body is exposed…

Q: Predict the depth of the Si–P thin film after 1.5 h, if the target concentration is 5% of the…

A: