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diff --git a/409/CH3/EX3.2/Example3_2.sce b/409/CH3/EX3.2/Example3_2.sce
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+clear ;
+clc;
+
+// Example 3.2
+printf('Example 3.2\n\n');
+//Page no. 80
+// Solution
+
+// Basis 100kg mol gas
+ml1 = 20.0 ;//[kg mol]
+ml2 = 30.0 ;//[kg mol]
+ml3 = 40.0 ;//[kg mol]
+ml4 = 10.0 ;//[kg mol]
+mw1 = 44.0  ;//molecular weight of CO2
+mw2 =  28.0  ;//molecular weight of CO
+mw3 =  16.04 ; //molecular weight of CH4
+mw4 =  2.02  ;//molecular weight of H2
+m1 = mw1*ml1;
+m2 = mw2*ml2;
+m3 = mw3*ml3;
+m4 = mw4*ml4;
+printf(' Component      kg mol        Mol.Wt.    kg.      \n')
+printf(' CO2            %.2f         %.2f      %.0f     \n',ml1,mw1,m1);
+printf(' CO             %.2f         %.2f      %.0f     \n',ml2,mw2,m2);
+printf(' CH4            %.2f         %.2f      %.0f     \n',ml3,mw3,m3);
+printf(' H2             %.2f         %.2f       %.0f     \n',ml4,mw4,m4);
+printf('\n Total          %.2f        %.2f      %.0f       \n',ml1+ml2+ml3+ml4,mw1+mw2+mw3+mw4,m1+m2+m3+m4);
+av_m = (m1+m2+m3+m4)/100 ;//[kg]
+printf('\nAverage molecular mass of gas is %.1f kg.\n',av_m);
+\ No newline at end of file