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+clc;clear;
+//Example 4.11
+
+//given data
+T=100;
+P=15;
+
+//from Table A–7
+//at P=15 mPa and T = 100 C
+hg=430.39;
+hf=419.17
+vf=0.001;
+Psat=101.42;//in kPa
+
+//calculations
+
+//part a
+h=hg;
+disp(h,'enthalpy of liquid water by using compressed liquid tables in kJ/kg');
+
+//part b
+//Approximating the compressed liquid as a saturated liquid at 100°C
+h=hf;
+disp(h,'enthalpy of liquid water by approximating it as a saturated liquid in kJ/kg');
+
+//part c
+h=hf + vf*(P*1000 - Psat );
+disp(h,'enthalpy of liquid water by using the correction given by Eq. 4–38 in kJ/kg');