Chemistry, asked by meghapatil0784, 2 months ago

what is the packing fraction of simple cubic unit cell derivation

Answers

Answered by hazratania16

1

Answer:

74%

Explanation:

Packing efficiency (P.E.) =

V

n×

3

4

πr

3

×100

For a FCC lattice, n=4

Therefore, P.E. =

a

3

4×

3

4

×(

2

2

a

3

)

=

3

2

π

×100=74%

Hence. in FCC, 74% of the total volume is occupied by atoms.

Answered by Lonely28

3

Answer :-

74 %

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