Physics, asked by Sahilrihan3393, 1 year ago

The density of CaF2 (fluorite structure) is 3.18 g/cm3. The length of the side of the unit cell is

Answers

Answered by laabah
2
4466 this is the answer
Answered by phillipinestest
1

Cubic crystal or a substance is made up of space lattice. In the space lattice, the substance is made up of packing of a number of unit cells.

Density\quad of\quad unit\quad cell\quad =\quad \frac { Mass\quad of\quad unit\quad cell }{ Volume\quad of\quad unit\quad cell }

=\quad \frac { Number\quad of\quad cells\quad \times \quad Mass }{ { a }^{ 3 } }

The number of unit cells in { CaF }_{ 2 } is 4.

Accordingly,

Side\quad (a)\quad =\quad \sqrt [ 3 ]{ \frac { 4\quad \times \quad 78.7 }{ 3.18 } }

=\quad \sqrt [ 3 ]{ 98.99 }

Side\quad (a)\quad =\quad 4.62

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