Concept explainers
Gold has
The fraction of atomic sites which are vacant in gold.
Answer to Problem 4.1P
The vacant fraction of atomic sites in gold at
Explanation of Solution
Given information:
At
The number of vacancies is
Final temperature is
Concept used:
Write the expression for the number of vacancies.
Here,
Calculation:
Use FCC lattice parameter for goldas
For
is calculated as follows:
The temperature is given as
Universal gas constant is
Calculate the activation energy for goldusing equation (1) as follows:
Calculate the fraction of vacant atomic sites
by using value of activation energyas follows:
The vacantfraction of atomic sites in gold at
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Chapter 4 Solutions
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