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diff --git a/632/CH12/EX12.11/example12_11.sce b/632/CH12/EX12.11/example12_11.sce
new file mode 100755
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+++ b/632/CH12/EX12.11/example12_11.sce
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+//clc()
+m = 1;//kg of oil burned
+mc = 0.9;//kg
+mh2 = 0.1;//kg
+Mc = mc / 12;//kmol
+//C(s) + O2(g) = CO2(g)
+Nh2 = mh2 / 2.016;//kmol
+//change in the no. of gaseous components accompanying the combustion of 1 mole of hydrogen in liquid state is -1/2 mol, therefore for Nh2 mol
+R = 8.314;
+T = 298;//K
+x = Nh2 * R * T / (-2);
+Qv = -43000;//kJ/kg
+Qp = Qv + x;
+disp("kJ/kg",Qp,"the constant pressure heat of combustion = ")
+\ No newline at end of file