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diff --git a/599/CH5/EX5.5/example5_5.sce b/599/CH5/EX5.5/example5_5.sce
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+
+clear;
+clc;
+printf("\t Example 5.5\n");
+
+//part(i)
+y_bar=.0183;                //kg water vapour/kg dry air
+printf("\n we get humidity as(from chart)  :%f kg of water/kg dry air",y_bar);
+printf("\n we get saturation humidity as(from chart)  :%d percent",67);
+Ma=18;                      //molecular weight
+Mb=28.84;                    //molecular weight
+Tg=30;                       //temperature of mixture
+rh=(pa/pa2)*100;            //relative humidity in pecentage        
+pt=1.013*10^5;            //total pressure in pascal
+VH=8315*[(1/Mb)+(y_bar/Ma)]*[(Tg+273)/pt];        //humid volume in m^3mixture/kg of dry air
+printf("\n we get humid volume as \t:%f  m^3/kg dry air",VH);
+
+//part(ii)
+Ca=1005;
+Cb=1884;
+Cs=Ca+Cb*y_bar;            //humid heat  in j/kg dry air degree celcius
+printf("\n we get humid heat as \t\t :%f j/kg dry air degree celcius ",Cs);
+
+//part(iii)
+d=2502300;                    //latent heat in j/kg
+H=Cs*(Tg-0)+y_bar*d;        //enthalpy for refrence temperature of 0 degree
+printf("\n we get Enthalpy H as \t\t:%f j/kg dry air",H);
+
+//part(iv)
+dewpoint=23.5;            //dew point temperature in degree celcius
+printf("\n the dew point temperature \t :%f degree celcius",dewpoint);
+
+//end
+\ No newline at end of file