Calculate: (a) Weight fraction for each component. (b) Mole fraction for each component.

Q: The diffusion coefficients for iron in nickel are given at two temperatures: T(K) 1273 1473 D (m²/s)…

A: The diffusion constant at T1 = 1273 K is The diffusion constant at The value of the gas constant is…

Q: Nitrogen from a gaseous phase is to be diffused into pure iron at 700°C. If the surface…

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Q: During Basic Oxygen Process to manufacture low carbon stainless steel, 600 kg of cast iron (6%of…

A: It is given that, Amount of cast iron =600 kg in which 6 % is carbon,Hence,600 kg of cast iron…

Q: What does(do) determine a diffusion coefficient (diffusivity)? (choose all) a. Concentration…

A: What does(do) determine a diffusion coefficient (diffusivity)?

Q: t approximately what temperature (in Kelvin) would a specimen of an alloy have to be carburized for…

A: Given data as per question T1=820°C=820+273=1093 Kτ1=12 hDo=1.6×10-6 m2/sQd=159 kJ/molAndτ2=1.1 h

Q: Consider the following reaction: 4NH3(g) + 5O2 (g) → 4NO (g) + 6H2O(g) a container were to have…

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Q: Calculate the enthalpy of propane in kJ/mole at 1000K assuming a representative specific heat value…

A: Given     Specific heat, CP = 128.7 J/mole.K    Temperature, T1 = 298 K                          T2…

Q: 9. In the figure below the temperature dependence of diffusivity of Carbon and Aluminum in iron and…

A: Al to Al disperses self-propagatingly, while carbon to iron joins together.There is an imbalance…

Q: Diffusion takes place in slow rate cooling or fast rate cooling

A: Diffusion is the process of transfer of atom, molecules from a range of higher temperature to the…

Q: An iron-carbon alloy initially containing 0.240 wt% C is exposed to an oxygen-rich and virtually…

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Q: The figure below shows five different steady-state concentration profiles from five separate tests,…

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Q: as a mass concentra

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Q: At approximately what temperature (in Kelvin) would a specimen of an alloy have to be carburized for…

A: Given Data: The value of D0=1.4×10-4 m2/s. The value of Qd=147 kJ/mol. The time is t1=2.5 h and…

Q: .Nitrogen from a gaseous phase is to be diffused into pure iron at 669 °C. If the surface…

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Atomic diffusion in solids

In material science, diffusion can take place in solid, liquid, and gases. In solids, atomic diffusion can take place with the help of thermally activated and randomly vibrating atoms. The atomic diffusion in solids is complex and very slow in comparison to atomic diffusion in liquids and gases because the interatomic distance between the atoms is smaller in solids as compared to liquids and gases.