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Multi-particle interaction in a model of the hydrophobic interaction

Author

Listed:
  • Bedeaux, D.
  • Koper, G.J.M.
  • Ispolatov, S.
  • Widom, B.

Abstract

The multi-particle potential of mean force between interstitial solute molecules in Ben-Naim's one-dimensional, many-state lattice model is calculated. The solution is a direct extension of an earlier calculation of the two-particle interaction by Kolomeisky and Widom (Faraday Dis. 112 (1999) 81). It is found that the many-particle interaction potential is a sum of pair potentials between neighboring particles only. An exact equation of state, expressing the activity in the temperature and the pressure, is derived. The resulting solubility of a gaseous hydrophobe, which is defined osmotically, is calculated and found to increase considerably with the gas density.

Suggested Citation

  • Bedeaux, D. & Koper, G.J.M. & Ispolatov, S. & Widom, B., 2001. "Multi-particle interaction in a model of the hydrophobic interaction," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 291(1), pages 39-48.
    • Handle: RePEc:eee:phsmap:v:291:y:2001:i:1:p:39-48
    DOI: 10.1016/S0378-4371(00)00521-5
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