-24. 试用下列方法计算由30%(摩尔%)的氮(1)和70%正丁烷(2)所组成的二元混-|||-合物,在462K、 times (10)^5Pa 下的摩尔体积。-|||-(1)使用Pitzer三参数压缩因子关联式-|||-(2)使用RK方程,其中参数项为:-|||-._(k)=dfrac (0.086640R{T)_(d)}({p)_(a)}-|||-._(9)=dfrac (0.427480{R)^2(T)_(ab)}({P)_(a)}-|||-(3)使用三项维里方程,维里系数实验值为 _(11)=14times (10)^-6 , _(22)=-265times (10)^-6 --|||-_(12)=-9.5times (10)^-6 ,(B的单位为 ^3cdot (mol)^-1 )。 _(111)=1.3times (10)^-9 . _(222)=3.025times (10)^-9 --|||-_(112)=4.95times (10)^-9 ._(122)=7.27times (10)^-9 (C的单位为 ^6cdot (mol)^-2 )。已知氮及正丁烷的临界-|||-参数和偏心因子为-|||-N2 _(varepsilon )=126.10k ._(c)=3.394MPa .omega =0.040-|||-nC4H10 _(t)=425.12k ._(总)=3.796MPa .omega =0.199