Abstract
Evidence is presented that many-body interactions in fluids have important consequences at the liquid-vapor critical point. In particular, three-body interactions in lattice-gas models are shown to lead to revised scaling variables and to a singularity in the coexistence-curve diameter with an amplitude proportional to the molecular polarizability. This is confirmed in experiments reported here. A companion van der Waals theory explains several other observed correlations between nonuniversal critical amplitudes.
Original language | English (US) |
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Pages (from-to) | 41-44 |
Number of pages | 4 |
Journal | Physical review letters |
Volume | 58 |
Issue number | 1 |
DOIs | |
State | Published - 1987 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy