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Get Full Access to Materials Science And Engineering: An Introduction - 9 Edition - Chapter 19 - Problem 19.11
Get Full Access to Materials Science And Engineering: An Introduction - 9 Edition - Chapter 19 - Problem 19.11

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# When a metal is heated, its density decreases. There are

ISBN: 9781118324578 140

## Solution for problem 19.11 Chapter 19

Materials Science and Engineering: An Introduction | 9th Edition

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Problem 19.11

When a metal is heated, its density decreases. There are two sources that give rise to this decrease of r: (1) the thermal expansion of the solid and (2) the formation of vacancies (Section 4.2). Consider a specimen of gold at room temperature (20C) that has a density of 19.320 g/cm3 . (a) Determine its density upon heating to 800C when only thermal expansion is considered. (b) Repeat the calculation when the introduction of vacancies is taken into account. Assume that the energy of vacancy formation is 0.98 eV/atom, and that the volume coefficient of thermal expansion, a is equal to 3al . 1

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##### ISBN: 9781118324578

Since the solution to 19.11 from 19 chapter was answered, more than 375 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 19.11 from chapter: 19 was answered by , our top Engineering and Tech solution expert on 11/14/17, 08:41PM. The answer to “When a metal is heated, its density decreases. There are two sources that give rise to this decrease of r: (1) the thermal expansion of the solid and (2) the formation of vacancies (Section 4.2). Consider a specimen of gold at room temperature (20C) that has a density of 19.320 g/cm3 . (a) Determine its density upon heating to 800C when only thermal expansion is considered. (b) Repeat the calculation when the introduction of vacancies is taken into account. Assume that the energy of vacancy formation is 0.98 eV/atom, and that the volume coefficient of thermal expansion, a is equal to 3al . 1” is broken down into a number of easy to follow steps, and 104 words. Materials Science and Engineering: An Introduction was written by and is associated to the ISBN: 9781118324578. This textbook survival guide was created for the textbook: Materials Science and Engineering: An Introduction, edition: 9. This full solution covers the following key subjects: Density, Thermal, Expansion, Vacancies, Formation. This expansive textbook survival guide covers 22 chapters, and 1041 solutions.

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