Critical exponent for viscosity
Abstract
We have measured the critical exponent y characterizing the divergence of the viscosity η~||T-Tc||-y for carbon dioxide and xenon. The values of y for both fluids fall within the range y=0.041+/-0.001 and are consistent with the range y=0.042+/-0.002 spanned by our earlier data for four binary liquid mixtures. This agreement is the strongest evidence that pure fluids and binary liquids are in the same dynamic universality class; however, the results for y are inconsistent with the recent theoretical value of 0.032.
- Publication:
-
Physical Review A
- Pub Date:
- December 1990
- DOI:
- 10.1103/PhysRevA.42.7183
- Bibcode:
- 1990PhRvA..42.7183B
- Keywords:
-
- Binary Mixtures;
- Carbon Dioxide;
- Viscous Fluids;
- Xenon;
- Critical Temperature;
- Temperature Effects;
- Thermodynamics and Statistical Physics;
- 64.60.Ht;
- 64.70.Fx;
- 64.70.Ja;
- 66.20.+d;
- Dynamic critical phenomena;
- Liquid-vapor transitions;
- Liquid-liquid transitions;
- Viscosity of liquids;
- diffusive momentum transport