Articles | Volume 15, issue 24
https://doi.org/10.5194/acp-15-13819-2015
https://doi.org/10.5194/acp-15-13819-2015
Research article
 | 
16 Dec 2015
Research article |  | 16 Dec 2015

Thermodynamic derivation of the activation energy for ice nucleation

D. Barahona

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This paper describes the process of the transfer of water molecules between liquid and the ice during the early stages of ice formation. Using concepts of nonreversible thermodynamics, it is shown that the activation energy can be defined in terms of the bulk self-diffusivity of water and the probability of interface transfer. The application of this model to classical nucleation theory shows good agreement of measured nucleation rates with experimental results for temperatures as low as 190K.
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