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+//chemical kinetics and catalysis//
+//example 3.21//
+Ti=27;//given temperature in C//
+T1=Ti+273;//in kelvin//
+Tr=10;//rise in temperature//
+T2=T1+Tr;
+k=3;//value of k1/k2//
+R=8.314;//value of constant R in J/K.mol//
+E=log(k)*R*T1*T2/(T2-T1);
+printf("Activation energy of the reaction is %fJ/mol or %fKJ/mol",E,E/1000);
+\ No newline at end of file