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diff --git a/647/CH11/EX11.4/Example11_4.sce b/647/CH11/EX11.4/Example11_4.sce
new file mode 100755
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+++ b/647/CH11/EX11.4/Example11_4.sce
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+clear;
+clc;
+
+// Example: 11.4
+// Page: 461
+
+printf("Example: 11.4 - Page: 461\n\n");
+
+// Solution
+
+//*****Data******//
+T_boiling = 118.24;// [OC]
+Tb = T_boiling + 273;// [K]
+a = 0.4344;// [g]
+b = 44.16;// [g]
+Lv = 121;// [cal/g]
+T_new = 118.1;// [OC]
+R = 2;// [cal/mol K]
+//**************//
+
+delta_Tb = T_boiling - T_new;// [OC]
+M2 = (R*Tb^2/(1000*Lv))*(a*1000/(b*delta_Tb));
+printf("Molecular weight of anthracene is %d kg/kmol",round(M2));
+\ No newline at end of file