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+//example 7
+//determining the pressure of water
+clear
+clc
+vg=0.12736 //specific volume in m^3/kg for water at 200C
+v=0.4 //specific volume in m^3/kg
+P1=500 //in kPa
+v1=0.42492 //specific volume at P1 in m^3/kg
+P2=600 //in kPa
+v2=0.35202 //specific volume at P2 in m^3/kg
+P=P1+(P2-P1)*(v-v1)/(v2-v1) //calculating pressure by interplotation
+disp('hence,the pressure of water is 534.2 kPa')
+\ No newline at end of file