外场对Soave方程中参数a(T)的影响

当气体系统位于均匀恒定电场中时，一方面，电场将对气体分子产生感生极化作用；另一方面，对于具有固有偶极矩的分子，由于二分子相互作用大小与二偶板子的取向有关，而外场将促使二锅板子尽量沿着相互作用能量最低的方向排列，以上诸方面都将增大二偶板子之间的相互吸引力，从而对索资方程中参数a（T）产生影响。

The Effect of an External Field on the Parameter a(T) in Soave's Equation

When gases is subjected to an uniform external electrostatic field. One side, the electro-static field makes the molecules of the gases to be polarized, Another side, for moleculs withinherent dipole moment, the external electrostatic field will make most possibly two dipolemolecules put in order along the direction of minumum interaction energy; The both sidesabove will increase the pulling force between two dipole molecules, and this will effect thepavameter a(T) in soave's equation.