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diff --git a/1367/CH4/EX4.5/4_5.sce b/1367/CH4/EX4.5/4_5.sce
new file mode 100755
index 000000000..1d5c8678e
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+++ b/1367/CH4/EX4.5/4_5.sce
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+//Find Distance between two adjacent atoms
+//Ex:4.5
+clc;
+clear;
+close;
+w_na=23;//atomic weight of Na
+w_cl=35.5;//atomic weight of Cl
+w=w_na+w_cl;//effective no.of atoms in FCC structure
+n=4;//FCC
+na=6.023*10^23;//Avagadrro's no.
+w_4=w*n/na;//weight of 4 molecules in gm
+p=2.18;//density in gm/cm^3
+a=(w_4/p)^(1/3);//in cm
+a1=a*10^8;//in angstorm
+disp(a1,"unit cell dimension (in angstorm) = ");
+d=a1/2;
+disp(d,"Distance between two adjacent atoms (in Angstorm) = ");
+\ No newline at end of file