[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]

*Last Update- September 16, 1995- wld*