initial commit / add all books

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+//clc()

+//the three phase temperature is first find out, which comes to be 342K, the corresponding Ps1 = 71.18, Ps2 = 30.12

+T = [342 343 348 353 363 373];

+Ps2 = [30.12 31.06 37.99 47.32 70.11 101.3];

+Ps1 = [71.18 72.91 85.31 100.5 135.42 179.14];

+P = 101.3;//kPa

+for i = 1:4

+    y1(i) = 1 - (Ps1(i))/P;

+end

+for i = 1:6

+    y2(i) = 1 - (Ps2(i))/P;

+end

+plot2d(y2,T);

+plot2d(1-y1,T,rect = [0,320,1,380]);

+xtitle('Temperature - compositon diagram','x, y (mole fraction of benzene)','Temperature')