What are the main drawbacks of the van der waals equation of state for real gases?

[Krishna0703]

what are the main drawbacks of the van der waals equation of state for real gases and how are they corrected?

 

[edgepflow]

I have successfully used the van der Waals equation of state for numerous practical calculations that don't require extreme accuracy. Considering ease-of-use, it is one of the better mechanistic models available.

 

[Krishna0703]

hey dudes..sure there are some drawbacks....concerning roots n so on..but am unable to find more info on that topic..if someone has more info..please do share....thanks in advance