28 Pages

# Chap 04 Solns-6E

Course Number: MATENG MAT201, Spring 2008

College/University: Wisconsin Milwaukee

Word Count: 4361

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CHAPTER 4 IMPERFECTIONS IN SOLIDS PROBLEM SOLUTIONS 4.1 In order to compute the fraction of atom sites that are vacant in lead at 600 K, we must employ Equation (4.1). As stated in the problem, Q = 0.55 eV/atom. Thus, v Q 0.55 eV / atom = exp - V = exp - -5 eV / atom -K (600 K) N kT 8.62 x 10 NV ( ) = 2.41 x 10 -5 4.2 Determination of the number of vacancies per cubic meter in gold at 900C...

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