5 files changed, 77 insertions, 0 deletions
diff --git a/3840/CH2/EX2.1/Ex2_1.sce b/3840/CH2/EX2.1/Ex2_1.sce
new file mode 100644
index 000000000..9f2bd3f4c
--- /dev/null
+++ b/3840/CH2/EX2.1/Ex2_1.sce
@@ -0,0 +1,16 @@
+clear
+//
+//
+//
+
+//Variable declaration
+r=0.1249     //radius(nm)
+n=2          //number of atoms
+
+//Calculation
+a=4*r/sqrt(3)    //unit cell edge length(nm)
+V=a**3                //volume of unit cell(nm**3)
+v=4*n*%pi*r**3/3  //volume of atoms in unit cell(nm**3)
+fv=V-v                //free volume per unit cell(nm**3)
+
+//Result
diff --git a/3840/CH2/EX2.2/Ex2_2.sce b/3840/CH2/EX2.2/Ex2_2.sce
new file mode 100644
index 000000000..fe0f81c13
--- /dev/null
+++ b/3840/CH2/EX2.2/Ex2_2.sce
@@ -0,0 +1,16 @@
+clear
+//
+//
+//
+
+//Variable declaration
+N=6.02*10**26           //Avagadro Number
+n=2
+rho=530    //density(kg/m**3)
+M=6.94     //atomic weight(amu)
+
+//Calculation
+a=(n*M/(rho*N))**(1/3)*10**10    //lattice constant(angstrom)
+
+//Result
+printf("\n lattice constant is %0.3f  angstrom",a)
diff --git a/3840/CH2/EX2.3/Ex2_3.sce b/3840/CH2/EX2.3/Ex2_3.sce
new file mode 100644
index 000000000..0273e06ba
--- /dev/null
+++ b/3840/CH2/EX2.3/Ex2_3.sce
@@ -0,0 +1,16 @@
+clear
+//
+//
+//
+
+//Variable declaration
+N=6.02*10**23           //Avagadro Number
+n=2
+rho=7860    //density(kg/m**3)
+M=55.85    //atomic weight(amu)
+
+//Calculation
+a=(n*M/(rho*N))**(1/3)*10**9    //lattice constant(angstrom)
+
+//Result
+printf("\n lattice constant is %0.2f  angstrom",a)
diff --git a/3840/CH2/EX2.5/Ex2_5.sce b/3840/CH2/EX2.5/Ex2_5.sce
new file mode 100644
index 000000000..f34831f62
--- /dev/null
+++ b/3840/CH2/EX2.5/Ex2_5.sce
@@ -0,0 +1,14 @@
+clear
+//
+//
+//
+
+//Variable declaration
+a=3.5        //lattice constant(angstrom)
+n=10**7      //1mm in angstrom
+
+//Calculation
+N=n**2/a**2  //number of atoms per sq mm
+        
+//Result
+printf("\n number of atoms per sq mm is %0.2f  *10**12",N/10**12)
diff --git a/3840/CH2/EX2.6/Ex2_6.sce b/3840/CH2/EX2.6/Ex2_6.sce
new file mode 100644
index 000000000..e97510d41
--- /dev/null
+++ b/3840/CH2/EX2.6/Ex2_6.sce
@@ -0,0 +1,15 @@
+clear
+//
+//
+//
+
+//Variable declaration
+N=6.02*10**26     //Avagadro Number
+n=8               //number of atoms
+a=5.62*10**-10    //lattice constant(m)
+M=72.59           //atomic weight(amu)
+
+//Calculation
+rho=n*M/(a**3*N)   //density(kg/m**3)
+        
+//Result