blob: 0fe424fc6117ad646b1a9b54be6c8566830512ee (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
|
// Scilab Code Ex 1.4 Lattice constant of a unit cell: Page-9 (2010)
M = 58.5; // Atomic weight of NaCl, gram per mole
d = 2180D+03; // Density of rock salt, per metre cube
n = 4; // No. of atoms per unit cell for an fcc lattice of NaCl crystal
N = 6.023D+23; // Avogadro's No.
// Volume of the unit cell is given by
// a^3 = M*n/(N*d)
// Solving for a
a = (n*M/(d*N))^(1/3); // Lattice constant of unit cell of NaCl
disp (a/1D-10, "Lattice constant for the rock salt (NaCl) crystal, in angstrom, is : ");
// Result
// Lattice constant for the rock salt (NaCl) crystal, in angstrom, is :
// 5.6275
|
