What are the maximum atomic and weight percentages of Cu that can be added to Au without exceeding a resistivity that is thrice that of pure gold? (Alloys are normally prepared by mixing the elements in weight. Resistivity of Au at 0°C is 20.5 nΩ m Nordheim coefficient for Cu in Au at 20°C is C = 450 nΩ m. Resistivity of Au at 20°C, using α0 = 1/242 K-1 )
What are the maximum atomic and weight percentages of Cu that can be added to Au without exceeding a resistivity that is thrice that of pure gold? (Alloys are normally prepared by mixing the elements in weight. Resistivity of Au at 0°C is 20.5 nΩ m Nordheim coefficient for Cu in Au at 20°C is C = 450 nΩ m. Resistivity of Au at 20°C, using α0 = 1/242 K-1 )
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter17: Electrochemistry
Section: Chapter Questions
Problem 48P
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What are the maximum atomic and weight percentages of Cu that can be added to Au without exceeding a resistivity that is thrice that of pure gold? (Alloys are normally prepared by mixing the elements in weight. Resistivity of Au at 0°C is 20.5 nΩ m Nordheim coefficient for Cu in Au at 20°C is C = 450 nΩ m. Resistivity of Au at 20°C, using α0 = 1/242 K-1 )
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