At 100∘C, copper (Cu) has fcc unit cell structure with cell edge length of x∘A . what is the approximate density of Cu (in gcm−3) at this temperature?
[Atomic mass of Cu=63.55u]
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Solution
Copper (Cu) has fcc unit cell structure, therefore, Z = 4 density,d=4×MNA(a)3 d=63.5×46×1023×x3×10−24g/cm3