Abstract
The rates of evaporation and condensation under the vapor-liquid equilibrium condition are investigated with a molecular dynamics computer simulation for argon at 80 K, methanol at 300 K, and water at 400 K. The molecular reflection at the surface, which is related to the condensation coefficient α, is divided into two parts, self reflection and molecular exchange. There is no significant difference among the three substances concerning the ratio of self reflection to collision. The total ratio of reflection is estimated as α ≅0.8 for argon, 0.2 for methanol, and 0.4 for water. The ratio of molecular exchange is much larger for methanol and water than for argon, which suggests that the conventional assumption of condensation as a unimolecular process fails for associating fluids.
| Original language | English |
|---|---|
| Pages (from-to) | 329-332 |
| Number of pages | 4 |
| Journal | Journal of Molecular Liquids |
| Volume | 65-66 |
| Issue number | C |
| DOIs | |
| Publication status | Published - 1995 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Spectroscopy
- Electronic, Optical and Magnetic Materials
- Materials Chemistry
- Condensed Matter Physics
- Atomic and Molecular Physics, and Optics
Cite this
Dynamics near a liquid surface : Mechanisms of evaporation and condensation. / Yasuoka, Kenji; Matsumoto, M.; Kataoka, Y.
In: Journal of Molecular Liquids, Vol. 65-66, No. C, 1995, p. 329-332.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Dynamics near a liquid surface
T2 - Mechanisms of evaporation and condensation
AU - Yasuoka, Kenji
AU - Matsumoto, M.
AU - Kataoka, Y.
PY - 1995
Y1 - 1995
N2 - The rates of evaporation and condensation under the vapor-liquid equilibrium condition are investigated with a molecular dynamics computer simulation for argon at 80 K, methanol at 300 K, and water at 400 K. The molecular reflection at the surface, which is related to the condensation coefficient α, is divided into two parts, self reflection and molecular exchange. There is no significant difference among the three substances concerning the ratio of self reflection to collision. The total ratio of reflection is estimated as α ≅0.8 for argon, 0.2 for methanol, and 0.4 for water. The ratio of molecular exchange is much larger for methanol and water than for argon, which suggests that the conventional assumption of condensation as a unimolecular process fails for associating fluids.
AB - The rates of evaporation and condensation under the vapor-liquid equilibrium condition are investigated with a molecular dynamics computer simulation for argon at 80 K, methanol at 300 K, and water at 400 K. The molecular reflection at the surface, which is related to the condensation coefficient α, is divided into two parts, self reflection and molecular exchange. There is no significant difference among the three substances concerning the ratio of self reflection to collision. The total ratio of reflection is estimated as α ≅0.8 for argon, 0.2 for methanol, and 0.4 for water. The ratio of molecular exchange is much larger for methanol and water than for argon, which suggests that the conventional assumption of condensation as a unimolecular process fails for associating fluids.
UR - http://www.scopus.com/inward/record.url?scp=1242299475&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=1242299475&partnerID=8YFLogxK
U2 - 10.1016/0167-7322(95)00892-0
DO - 10.1016/0167-7322(95)00892-0
M3 - Article
VL - 65-66
SP - 329
EP - 332
JO - Journal of Molecular Liquids
JF - Journal of Molecular Liquids
SN - 0167-7322
IS - C
ER -