Non-equilibrium thermodynamics of the gasliquid interface: Measurement of the Onsager heat of transport for nitrous oxide at the surface of water

Daniel M. Packwood, Leon F. Phillips

    研究成果: Article査読

    7 被引用数 (Scopus)

    抄録

    The Onsager heat of transport, Q*, for nitrous oxide at the surface of water has been measured by using high-resolution diode-laser spectroscopy to monitor the partial pressure of N2O as a function of the temperature difference across a 5-mm vapour gap above the water surface. The metal surface above the vapour gap was conditioned with ammonia prior to the measurements, to enable efficient thermal accommodation at that surface, which allowed the temperature difference to be as large as 15 K. We find Q* 6.6 ± 0.85 kJ mol1, so that Q*/RT is 2.9 at T 275.15 K. These experiments are a necessary preliminary to a planned series of measurements of Q* for CO2 at the surface of simulated sea water.

    本文言語English
    ページ(範囲)75-84
    ページ数10
    ジャーナルJournal of Non-Equilibrium Thermodynamics
    35
    1
    DOI
    出版ステータスPublished - 2010 4月

    ASJC Scopus subject areas

    • 化学 (全般)
    • 物理学および天文学(全般)

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