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diff --git a/647/CH4/EX4.1/Example4_1.sce b/647/CH4/EX4.1/Example4_1.sce
new file mode 100755
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+++ b/647/CH4/EX4.1/Example4_1.sce
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+clear;
+clc;
+
+// Example: 4.1
+// Page: 118
+
+printf("Example: 4.1 - Page: 118\n\n");
+
+// Solution
+
+//*****Data*****//
+Qp = -327;// [kcal]
+T = 27 + 273;// [K]
+R = 2*10^(-3);// [kcal/K mol]
+//*************//
+
+// The reaction involved is:
+// C2H5OH(l) + 3O2(g) = 2CO2(g) + 3H2O(l)
+deltan = 2 - 3;
+Qv = Qp - deltan*R*T;// [kcal]
+printf("Value of Qv is %.2f kcal\n",Qv);
+\ No newline at end of file