The name is absent

Figure 2.5: (a) Comparison of the critical temperatures from the new equation of state
(solid line) and PC-SAFT (dashed line) with experimental data for n-alkane series from
n-C3 to n-C20 (b) Comparison of the critical pressures from the new equation of state
(solid line) and PC-SAFT (dashed line) with experimental data for n-alkane series from
n-C3 to n-C20.

properties of n-alkanes accurately, the tests for the robustness of the parameters are
that they must follow a definite trend and when extrapolated to higher molecular
weights, should predict the thermodynamics with reasonable accuracy.

Figure 2.6 shows the trend of the parameters with increasing molar mass. The
parameters show a smooth course and tend to approach a constant value at large
molecular weights. The pure component parameters can be correlated to the molec-
ular weight using the following functional form,

M — Mc₃H₈ , M_i — Mc₃h₈ M_i — 2Mc₃h₈

M_i ^{qik +} M_i          M_i ^q2‘

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