1 files changed, 13 insertions, 0 deletions
diff --git a/3669/CH1/EX1.3/3.sce b/3669/CH1/EX1.3/3.sce
new file mode 100644
index 000000000..893939b31
--- /dev/null
+++ b/3669/CH1/EX1.3/3.sce
@@ -0,0 +1,13 @@
+
+//Variable declaration
+e=1.602*10**-19;   //charge of electron(c)
+epsilon0=8.85*10**-12;    //permittivity(C/Nm)
+r0=0.281*10**-9;     //seperation(m)
+alpham=1.748;    //madelung constant
+n=9;    //repulsive exponent value
+
+//Calculation
+E=-alpham*e**2*(1-(1/n))/(4*e*%pi*epsilon0*r0);      //cohesive energy(eV)
+
+//Result
+printf('cohesive energy is %0.3f  eV      \n',(E))
+\ No newline at end of file