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Calculate the equilibrium number of vacancies per cubic meter for copper at 1200 0C. The energy for vacancy formation is 0.9 eV per atom; atomic

Calculate the equilibrium number of vacancies per cubic meter for copper at 1200 0C. The energy for vacancy formation is 0.9 eV per atom; atomic mass and density (at 1200 0C) for copper are 63.5 gmol-1 and 8.40 gcm-3 respectively. Given NA= 6.022 x 1023 atoms mol-1; kB = 8.62 x 10-5 eVK-1

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