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diff --git a/1439/CH5/EX5.9/5_9.sce b/1439/CH5/EX5.9/5_9.sce
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+clc
+//initialisation of variables
+T= 100 //C
+R= 1.987 //cal mole^-1 K^-1
+H= 539.7 //cal g^-1
+M= 18 //g mole^-1
+//CALCULATIONS
+w= -R*(273+T)
+qp= -H*M
+dE= qp-w
+dA= -w
+dS= qp/(273+T)
+dG= qp-(273+T)*dS
+//RESULTS
+printf ('W= %.f cal mole^-1',w)
+printf ('\n qp= %.f cal mole^-1',qp)
+printf ('\n dE= %.f cal mole^-1',dE)
+printf ('\n dA= %.f cal mole^-1',dA)
+printf ('\n dS= %.f cal deg^-1 mole^-1',dS)
+printf ('\n dG= %.f cal mole^-1',dG)