initial commit / add all books

1 files changed, 15 insertions, 0 deletions

diff --git a/635/CH5/EX5.4/Ch05Ex4.sci b/635/CH5/EX5.4/Ch05Ex4.sci
new file mode 100755
index 000000000..f184a5c61
--- /dev/null
+++ b/635/CH5/EX5.4/Ch05Ex4.sci
@@ -0,0 +1,15 @@
+// Scilab Code Ex5.4 Number of Schottky imperfections in NaCl crystal Page-160 (2010)

+N = 6.023D23;    // Avogadro's number

+k = 8.614D-5;    // Boltzmann's constant, eV/K

+T = 27+273;    // Absolute room temperature, K

+Ep = 2;    // Energy required to remove a pair of Na+ and Cl- ions, electron-volt

+// Now Concentration of imperfections in a crystal is given by

+// n/N = exp(-Ep/(2*k*T)), solving for n

+n = N*exp(-Ep/(2*k*T));    // No. of Schottky imperfections present in NaCl crystal

+printf("\nNo. of Schottky imperfections present in NaCl crystal is : %4.2e", n);

+V = 26.83;    // Volume of one mole of the crystal, cm cube

+n = n/V;    // Number per mole volume of the crystal, per cm cube

+printf("\nConcentration of Schottky imperfections present in NaCl crystal is : %4.2e per cm cube", n);

+//Result

+// No. of Schottky imperfections present in NaCl crystal is : 9.42e+006

+// Concentration of Schottky imperfections present in NaCl crystal is : 3.51e+005 per cm cube 
\ No newline at end of file