Question

A metal crystallizes into two cubic phases i.e., fcc and bcc phase whose unit cell lengths are 3.5 and 3.0 angstrom calculate the ratio of the densities of fcc and bcc

Answer 1

formula of density = z×m/a3×No
a= unit cell length
now for FCC
Z= 4 , a= 3.5

d1 = 4×m/(3.5)3×No

now for bcc.
Z= 2,. a= 3.0

d2 = 2×m/(3)3×No
now the ratio of density= d1/d2= 432/343

Answer 2

Answer:

Hope it will help you

Vasim@27