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At 100^(@), copper (Cu) has FCC unit cel...

At `100^(@)`, copper (Cu) has FCC unit cell structure with cell edge length of x A. What is the approximate density of Cu (in g `cm^(-3)` at this temperature?
[Atomic Mass of Cu = 63.55 u]

A

`(105)/(x^(3))`

B

`(422)/(x^(3))`

C

`(205)/(x^(3))`

D

`(211)/(x^(3))`

Text Solution

Verified by Experts

The correct Answer is:
B
`d=(Z xx M)/(N_(A) xx a^(2)) ` for fcc Z = 4
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