1 files changed, 31 insertions, 0 deletions
diff --git a/611/CH4/EX4.25/Chap4_Ex25_R1.sce b/611/CH4/EX4.25/Chap4_Ex25_R1.sce
new file mode 100755
index 000000000..353bc40d0
--- /dev/null
+++ b/611/CH4/EX4.25/Chap4_Ex25_R1.sce
@@ -0,0 +1,31 @@
+// Y.V.C.Rao ,1997.Chemical Engineering Thermodynamics.Universities Press,Hyderabad,India.
+
+//Chapter-4,Example 25,Page 133
+//Title:Standard enthalpy change 
+//================================================================================================================
+clear 
+clc
+
+//INPUT
+
+//The reaction is: CH4(g)+H2O(g)--->CO(g)+3H2(g)
+//The standard enthalpy change for the above reaction is determined by using the individual combustion reactions
+//The combustion reactions are:
+//A--->CH4(g)+2O2(g)--->CO2(g)+2H2O(l)--->del_Hc_A
+//B--->CO(g)+(1/2)O2(g)--->CO2(g)--->del_Hc_B
+//C--->H2(g)+(1/2)O2(g)--->H2O(l)--->del_Hc_C
+//D--->H2O(g)--->H2O(l)--->del_H_vap
+
+del_Hc_A=-890.94;//enthalpy change accompanying reaction A in kJ
+del_Hc_B=-283.18;//enthalpy change accompanying reaction B in kJ
+del_Hc_C=-286.03;//enthalpy change accompanying reaction C in kJ
+del_H_vap=-43.966;//enthalpy change of vaporization of H2O at 298.15K in kJ/mol
+
+//CALCULATION
+del_H0=(del_Hc_A)-(del_Hc_B)-(3*del_Hc_C)+(del_H_vap);//calculation of the standard enthalpy change of the reaction in kJ
+
+//OUTPUT
+mprintf('\n The standard enthalpy change at 298.15K for the reaction CH4(g)+H2O(g)--->CO(g)+3H2(g)= %0.3f kJ\n',del_H0);
+
+//===============================================END OF PROGRAM===================================================
+