Osmotic Pressure vs. Molecular Weight

The equation below is a series expansion


[Allcock-417]
[Sperling-81]

• is osmotic pressure
• c is concentration
• R is the real gas constant
• T is temperature
• is the number average molecular weight
• and are Virial Expansion coefficients. [Sperling-81]
  
  The above equation is simplified by taking measurements at different concentrations and then extrapolating to zero to yield:
  
  [Sperling=80]
  
  
  
  
  
  
  

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  Last Update- September 16, 1995- wld

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