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Měření (P, Vm, T) chování systému oktan + benzen při teplotách 298.15 K až 328.15 K a při tlacích do 40 MPa
 Morávková, Lenka ; Wagner, Zdeněk ; Linek, Jan
The densities of (octane + benzene) were measured at elevated pressures (0.1 to 40) MPa at four temperatures over the range 298.15 K to 328.15 K with a high-pressure apparatus. The high-pressure density data were fitted to the Tait equation and the isothermal compressibilities were calculated with a novel computation procedure with the aid of this equation. The lowand high-pressure values of excess molar volume V E m calculated from the density data show that the deviations from ideal behaviour in the system are practically independent of temperature and decreases slightly as the pressure is raised. The V E m data were fitted to the fourth-order Redlich–Kister equation, with the maximum likelihood principle being applied for the determination of the adjustable parameters.
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