Measurements of Mass and Heat Transfer at a Liquid Water Surface during Condensation or Evaporation of a Subnanometer Thickness Layer of Water

被引：44

作者：

Miles, Rachael E. H. ^{[1
]}

Knox, Kerry J. ^{[1
]}

Reid, Jonathan P. ^{[1
]}

Laurain, Adele M. C. ^{[1
]}

Mitchem, Laura ^{[1
]}

机构：

[1] Univ Bristol, Sch Chem, Bristol BS8 1TS, Avon, England

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 11期

基金：

英国工程与自然科学研究理事会;

关键词：

ACCOMMODATION COEFFICIENTS; THERMAL ACCOMMODATION; ANALYTICAL EXPRESSION; DROPLETS; AEROSOL; TEMPERATURE; ABSORPTION; GROWTH;

D O I：

10.1103/PhysRevLett.105.116101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A novel approach for exploring the molecular dynamics during condensation or evaporation at a liquid water surface is reported at pressures between 2 and 100 kPa. By introducing or removing a heating laser illuminating an optically tweezed aqueous aerosol droplet, the temperature of the droplet can be controlled with sub-mK accuracy and the change in size to reequilibrate with the surroundings monitored with subnanometer accuracy. The time constant for equilibration is shown to provide important insight into the coupling of heat and mass transfer during condensation or evaporation.

引用

页数：4

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