Machine-translated by Google. Questions are authored in English.
Top

Discussion

UNIFAC differs from UNIQUAC chiefly in that it

  • A.requires no assumption at all about molecular size
  • B.is an equation of state rather than an activity model
  • C.estimates parameters from functional groups
  • D.applies only to vapour phases at low pressure

Answer: C

By treating a molecule as a collection of groups it can predict behaviour for a binary that has never been measured, which is invaluable in early design. Its accuracy is lower than a model fitted to real data for the actual pair.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.