Q.2 ( Calculate the equilibrium number of vacancies per cubic meter for copper at 160 and 927 C. The energy for vacancy formation is 0.9 eV/atom; the atomic weight and density for copper are 63.5 g/mol and 8.4 g/cm³, respectively. anification 300X. What is the

O h. 0.74 Silver (Ag) has the FCC crystal structure. The atomic radius is R = 0.144 nm and the atomic mass is M = 107.87 g/mole. What is the density of Silver in g/m? Given: Avogadro's Number NA = 0.6023 x 1024 (atoms/mole) Select one: a. 10.6x106 O b. 10.6×105 O c. 10.6×10 O d. 10.60 O e. 10.6x10 Chromium (Cr) has the Boody-Centered Cubic (BCC) crystal structure. The edge length is a= 0.288 nm. What is the linear density in atoms/nm along direction (111P Select one: 9:12 PM O a. 7.48 O O e 4) A ENG 15-Apr-2021

Vanadium (V) has a BCC crystal structure. The atomic radius is R = 0.132 nm and the atomic mass is M = 50.94 g/mole. What is the density of Vanadium in g/mm3? Given: Avogadro’s Number NA = 0.6023 × 1024 (atoms/mole) Select one: a. 1.5 b. 0.021 c. 0.011 d. 0.0087 e. 0.00597

Scandium (Sc) has the FCC crystal structure. The atomic radius is R = 0.16 nm and the atomic mass is M = %3D 44.96 g/mole. What is the density of Scandium in g/cm3? Given: Avogadro's Number NA = 0.6023 × 1024 (atoms/mole) %3D Select one: a. 12.14 b. 5.30 c. 12.55 d, 3.22 e. 6.77