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+//Chapter 12 Thermodynamics Thermodynamic chemistry
+
+clc;
+clear;
+
+//Initialisation of Variables
+T= 90 //C
+T1= 25 //C
+Cp= 6.9 //cal per mole per degree
+CP1= 7.05 //cal per mole per degree
+Cp2= 18 //cal per mole per degree
+H= -68.37 //kcal
+
+//CALCULATIONS
+H1= H+(Cp2-Cp-0.5*CP1)*((T-T1)/1000)
+
+//RESULTS
+mprintf("Heat of formation= %.2f cal",H1)