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//scilab 5.4.1
clear;
clc;
printf("\t\t\tProblem Number 5.14\n\n\n");
// Chapter 5 : Properties Of Liquids And Gases
// Problem 5.14 (page no. 198)
// Solution
//From Table3, we first obtain the properties at 337 psia and 460 F and then 337 psia and 470 F.
//The necessary interpolations are best done in tabular forms as shown:
//Proceeding with the calculation,at 460 F,
// p v // p h
// 340 1.4448 // 340 1226.7
// 337 1.4595 // 337 1227.2
// 335 1.4693 // 335 1227.5
v=1.4696-(2/5)*(1.4693-1.4448); h=1227.5-(2/5)*(1227.5-1226.7);
//ft^3/lbm //specific volume //Btu/lbm //enthaply
//And at 470 F,
// p v // p h
// 340 1.4693 // 340 1233.4
// 337 1.4841 // 337 1233.9
// 335 1.4940 // 335 1234.2
v=1.4640-(2/5)*(1.4640-1.4693); h=1234.2-(2/5)*(1234.2-1233.4);
//ft^3/lbm //specific volume //Btu/lbm //enthaply
//Therefore,at 337 psia and 465 F
// t v // t h
// 470 1.4841 // 470 1233.9
// 465 1.4718 // 465 1230.7
// 460 1.4595 // 460 1227.5
v=1.4595+(1/2)*(1.4841-1.4595); h=1227.5+(1/2)*(1233.9-1227.5);
//ft^3/lbm //specific volume //Btu/lbm //enthaply
printf("At 465 F and 337 psia,specific volume=%f ft^3/lbm and enthalpy=%f Btu/lbm\n",v,h);
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