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+//Example 4.5
+clear;
+clc;
+
+//Given
+n=1;//moles of ice
+Ttrans=286;//melting temperature in K
+P=1;//pressure in atm;
+delHtrans=2090;// enthalpy of transformation in J mol^-1
+Tb=373;//boiling temperature in K
+delHv=40850;// enthalpy of fusion in J mol^-1
+
+//to calculate the change in entropy
+delSv=delHv/Tb;//entropy change during boiling in J mol^-1 K^-1
+mprintf('(a) change in entropy during boiling of water = %f J K^-1 mol^-1',delSv);
+delStrans=delHtrans/Ttrans;//entropy change during transition in J mol^-1 K^-1
+mprintf('\n (b) change in entropy during phase transformation of Sn = %f J K^-1 mol^-1',delStrans);
+//end
+\ No newline at end of file