Simplified perturbed hard chain
This is a simple, yet powerful noncubic EOS of the “perturbed hard chain” class. The attraction term is based on a square-well potential. The EOS has correct high-temperature limiting behaviour.
The critical compression factor of this EOS is outside the experimentally observed range.
adjustable parameters: 3
For mixture calculations the following mixing theories are available:
 C.-H. Kim, P. Vimalchand, M. D. Donohue, and S. I. Sandler, AIChE J. 32 (1986) 1786–1734.
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