//scilab 5.4.1 clear; clc; printf("\t\t\tProblem Number 5.16\n\n\n"); // Chapter 5 : Properties Of Liquids And Gases // Problem 5.16 (page no. 202) // Solution //It is necessary to ontain the saturation values corresponding to 300 F.This is done by reading Table A.1 in Appendix 3,which gives pf=66.98; //psia //pressure vf=0.017448; //ft^3/lbm //specific volume hf=269.73; //Btu/lbm //enthaply //Now, p=1000; //psia //pressure J=778; //Conversion factor //ft*lbf/Btu //From eq.5.5, h=hf+((p-pf)*vf*144)/J; //1ft^2=144 in^2 //The enthalpy of subcooled water //Btu/lbm printf("The enthalpy of subcooled water is %f Btu/lbm\n",h); //The difference between this value and the value found in problem 5.15,expressed as a percentage is percentoferror=(h-271.46)/271.46; printf("Percent of error is %f\n",percentoferror*100);