5. A sheet of BcC iron 1 mm thick was exposed to a carburizing gas atmosphere on one side and a decarburizing atmosphere on the other side at 725 °C. After reaching steady state , the iron was quickly cooled to room temperature The carbon concentrations at the two surfaces of the sheet were determined to be 0.012 and 0.0075 wt %. Compute the diffusion coefficient if the diffusion flux is 1.5 x 10 -8 kg/ m2 · s. The density for carbon and iron is 2.25 and 7.87 g/cm 2, respectively

5. A sheet of BcC iron 1 mm thick was exposed to a carburizing gas atmosphere on one side and a decarburizing atmosphere on the other side at 725 °C. After reaching steady state , the iron was quickly cooled to room temperature The carbon concentrations at the two surfaces of the sheet were determined to be 0.012 and 0.0075 wt %. Compute the diffusion coefficient if the diffusion flux is 1.5 x 10 -8 kg/ m2 · s. The density for carbon and iron is 2.25 and 7.87 g/cm 2, respectively

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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