//Example 4.4 clear; clc; //Given n=1;//moles of ice Tm=273;//melting temperature in K P=1;//pressure in atm; delHf=6008;// enthalpy of fusion 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 delSm=delHf/Tm;//entropy change during melting in J mol^-1 K^-1 mprintf('(a) change in entropy during melting = %f J K^-1 mol^-1',delSm); delSv=delHv/Tb;//entropy change during boiling in J mol^-1 K^-1 mprintf('\n (b) change in entropy during boiling = %f J K^-1 mol^-1',delSv); //end