Van Der Waals EOS Shortcomings & Corrections

  • Context: Graduate 
  • Thread starter Thread starter Krishna0703
  • Start date Start date
  • Tags Tags
    Van der waals
Click For Summary
SUMMARY

The Van der Waals equation of state (EOS) has notable shortcomings when applied to real gases, particularly in its inability to accurately predict behavior under extreme conditions. Users have reported that while it is effective for practical calculations requiring moderate accuracy, it struggles with issues related to critical points and phase transitions. Corrections to the Van der Waals EOS include the use of more sophisticated models such as the Redlich-Kwong and Peng-Robinson equations, which provide improved accuracy for real gas behavior.

PREREQUISITES
  • Understanding of the Van der Waals equation of state
  • Familiarity with real gas behavior and thermodynamic principles
  • Knowledge of critical points and phase transitions
  • Experience with alternative EOS models like Redlich-Kwong and Peng-Robinson
NEXT STEPS
  • Research the Redlich-Kwong equation of state for real gas applications
  • Study the Peng-Robinson equation and its advantages over Van der Waals EOS
  • Explore the concept of critical points in thermodynamics
  • Investigate the limitations of the Van der Waals EOS in various industrial applications
USEFUL FOR

Researchers, chemical engineers, and students studying thermodynamics who are looking to understand the limitations of the Van der Waals equation of state and explore more accurate models for real gas behavior.

Krishna0703
Messages
15
Reaction score
0
what are the main drawbacks of the van der waals equation of state for real gases and how are they corrected?
 
Science news on Phys.org


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.
 


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
 

Similar threads

Graduate I'm trying to follow the proof given in Box 5.3 of MCP (Thorne/Blandford)
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Van der Waals Equation: How Surface is Considered
  • · Replies 39 ·
2
Replies
39
Views
4K
Undergrad Wall material effect on Van der Waals gas?
  • · Replies 23 ·
Replies
23
Views
2K
Graduate Compressibility factor and van der Waals equation for temp
  • · Replies 3 ·
Replies
3
Views
4K
About Van Der Waals interactions
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Inversion and Isenthelpic Curves for van der Waals EOS
  • · Replies 6 ·
Replies
6
Views
6K
Graduate Van der waals equation and molar specific heat
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Interpretation of the Van der Waals Equation
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad Liquid-gas phase transition: metastable mixed states?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad How do I calculate van der Waals constants with 2 unknowns (a and b)?
  • · Replies 8 ·
Replies
8
Views
4K