CBSE Class 12-science Answered
A metal M crystallizes in FCC and BCC structure depending upon the temperature. What would be the ratio of its density in FCC and BCC structures?
Asked by Pragyashree Jain | 16 May, 2014, 10:05: AM
Expert Answer
Dear,
For the FCC structure Z1=4 and BCC structure, Z2 = 2
Volume is V and Atomic mass is M.
Density of the element
ρ1 = Z1 X M
V X N0 (1)
And,
ρ2 = Z2 X M
V X N0 (2)
Divide (1) by (2)
We get ,
ρ1 / ρ2 = Z1 / Z2 = 4/2 = 2/1 or 2:1
Hence, the ratio of densities of FCC to BCC is 2:1.
Regards
Topperlearning Team.
Topperlearning Team.
Answered by Prachi Sawant | 19 May, 2014, 11:57: AM
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