In a sample of MgO held at 1500°C grains of MgO grew from 1um diameter to 10 um diameter in 1 hour. If the grain boundary diffusion energy is 250 kJ/mol, what will the grain size be after 2 hours and 4 hours? If the experiments were repeated at 1600°C, how would these results change?

In a sample of MgO held at 1500°C grains of MgO grew from 1um diameter to 10 um diameter in 1 hour. If the grain boundary diffusion energy is 250 kJ/mol, what will the grain size be after 2 hours and 4 hours? If the experiments were repeated at 1600°C, how would these results change?

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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Question

In a sample of MgO held at 1500°C grains of MgO
grew from 1um diameter to 10 um diameter in 1
hour. If the grain boundary diffusion energy is 250
kJ/mol, what will the grain size be after 2 hours
and 4 hours? If the experiments were repeated at
1600°C, how would these results change?

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