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+// Example 7_4
+clc;funcprot(0);
+// Given data
+m=1.5;// kg
+x_1=0;// The dryness fraction
+T_1=20.0;// °C
+p_1=0.10;// MPa
+p_2=0.10;// MPa
+c=4.19;// kJ/kg.°C
+
+// Solution
+T_2=T_1;// °C
+deltaS=c*log(T_2/T_1);// kJ/kg.K
+printf('\nThe change in specific entropy of the water,s_2-s_1=%0.0f.Consequently, the entropy of an incompressible material is not altered by changing its pressure.',deltaS);