Calculate the number of vacancies per cubic meter for some metal, M, at 749°C. The energy for vacancy formation is 0.84 eV/atom, while the density and atomic weight for this metal are 8.18 g/cm (at 749°C) and 48.02 g/mol, respectively.

Calculate the number of vacancies per cubic meter for some metal, M, at 749°C. The energy for vacancy formation is 0.84 eV/atom, while the density and atomic weight for this metal are 8.18 g/cm (at 749°C) and 48.02 g/mol, respectively.

Welding: Principles and Applications (MindTap Course List)

8th Edition

ISBN:9781305494695

Author:Larry Jeffus

Publisher:Larry Jeffus

Chapter26: Welding Metallurgy

Section: Chapter Questions

Problem 7R

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Concept explainers

The Space Lattice and Unit Cells

Every matter consists of atoms, molecules, and ions. If these atoms, molecules, and ions (micro-particles) are represented in a three-dimensional space-occupying certain specific points in space, then these arrangements are termed as space lattices and the specific points which are being occupied by atoms, molecules and ions are termed as lattice points. The atoms, molecules, and ions at the lattice points are generally grouped in a regular fashion and repeat periodically at the three-dimensional space.

Question

Calculate the number of vacancies per cubic meter for some metal, M, at 749°C. The energy for vacancy formation is 0.84 eV/atom,
while the density and atomic weight for this metal are 8.18 g/cm (at 749°C) and 48.02 g/mol, respectively.
m3

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