4 files changed, 60 insertions, 0 deletions
diff --git a/273/CH16/EX16.1/ex16_1.sce b/273/CH16/EX16.1/ex16_1.sce
new file mode 100755
index 000000000..4ebc88eea
--- /dev/null
+++ b/273/CH16/EX16.1/ex16_1.sce
@@ -0,0 +1,13 @@
+clc;clear;
+//Example 16.1
+//calculation of density
+
+//given values
+a=3.36*10^-10;//lattice constant in m
+M=209;//atomicmass of polonium in kg
+N=6.02*10^26;//avogadro's number
+z=1;//no of atom
+//calculation
+d=z*M/(N*a^3)
+
+disp(d,'density (in kg/m^3) is');
diff --git a/273/CH16/EX16.2/ex16_2.sce b/273/CH16/EX16.2/ex16_2.sce
new file mode 100755
index 000000000..a80f5b878
--- /dev/null
+++ b/273/CH16/EX16.2/ex16_2.sce
@@ -0,0 +1,14 @@
+clc;clear;
+//Example 16.2
+//calculation of no of atoms
+
+//given values
+a=4.3*10^-10;//edge of unit cell in m
+d=963;//density in kg/m^3
+M=23;//atomicmass of sodium in kg
+N=6.02*10^26;//avogadro's number
+
+//calculation
+z=d*N*a^3/M;
+
+disp(z,'no of atoms is');
diff --git a/273/CH16/EX16.3/ex16_3.sce b/273/CH16/EX16.3/ex16_3.sce
new file mode 100755
index 000000000..31c799ef8
--- /dev/null
+++ b/273/CH16/EX16.3/ex16_3.sce
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+clc;clear;
+//Example 16.3
+//calculation of distance
+
+//given values
+z=4;//no of atoms in fcc
+d=2180;//density in kg/m^3
+M=23+35.3;//atomicmass of sodium chloride in kg
+N=6.02*10^26;//avogadro's number
+
+//calculation
+a1=z*M/(N*d);
+a=a1^(1/3);
+l=a/2;//in m
+
+disp(l*10^10,'distance between adjacent chlorine and sodium atoms in armstrong is');
diff --git a/273/CH16/EX16.4/ex16_4.sce b/273/CH16/EX16.4/ex16_4.sce
new file mode 100755
index 000000000..92a7e9638
--- /dev/null
+++ b/273/CH16/EX16.4/ex16_4.sce
@@ -0,0 +1,17 @@
+clc;clear;
+//Example 16.4
+//calculation of interatomic spacing
+
+//given values
+alpha=30*%pi/180;//Bragg angle in degree
+h=1;
+k=1;
+l=1;
+m=1;//order of reflection
+x=1.75*10^-10;//wavelength in m
+
+//calculation
+d=m*x/(2*sin(alpha));
+a=d*sqrt(h^2+k^2+l^2);//in m
+
+disp(a*10^10,'interatomic spacing in armstrong is');