Carbon is allowed to diffuse through a steel plate 10-mm thick: The concentrations of carbon at the two faces are 0.85 and 0.40 kg C/cm? Fe; which are maintained constant: If the preexponential and activation energy are 5.0 X 10-7 and 77,000 J/mol, respectively, compute the temperature at which the diffusion flux is 6.3 X 10-10 M" 5 T =108.33 K T =381.33 'C T =105.33 'C T = 108.33 *€ None

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Carbon is allowed to diffuse through a steel plate 10-mm thick: The concentrations of carbon at the two faces are 0.85 and 0.40 kg C/cm? Fe; which are maintained constant: If the preexponential and activation energy are 5.0 X 10-7 and 77,000 J/mol, respectively, compute the temperature at which the diffusion flux is 6.3 X 10-10 M" 5 T =108.33 K T =381.33 'C T =105.33 'C T = 108.33 *€ None

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For the diffusion of carbon in iron at 927°C, the activation energy is 142 kJ/mol and D₀ is 2 x 10⁻⁵ m²/s. Calculate the diffusivity in m²/s for the diffusion of carbon in iron: 24 x 10⁻¹¹ m²/s 1.97 x 10⁻⁵ m²/s 1.32 x 10⁻¹ m²/s 1.99 x 10⁻¹³ m²/s

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30417 Students Helped in Physics 101 Mechanics “Explaining topics while I make Numerade videos has helped me deepen my own understanding and come up with new ways to help my students grasp concepts while I'm teaching.” Professor Jonathan Reed Master's in Physics 101 Mechanics

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44601 Students Helped in Physics 101 Mechanics "The format has forced me to think about what knowledge is needed by the student to solve a problem and present it concisely and understandably within the time constraint of the video." Dr. Emily Green PhD in Physics 101 Mechanics

We are given the diffusion flux (J), the concentrations of carbon at the two faces (C1 and C2), and the thickness of the steel plate (x). We can use Fick's first law of diffusion to relate these quantities: J = -D * (C1 - C2) / x where D is the diffusion  Show more…

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25992 Students Helped in Physics 101 Mechanics “Numerade has a great goal - to increase people's educational levels all around the world. Educators do not complete student's personal homework tasks. We create video tutorials that may be used for many years in the future.” Dr. Mei Lin Chen PhD in Physics 101 Mechanics

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