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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Microscopic Surface Tension in the Classical Nucleation Theory
 Němec, Tomáš ; Maršík, František
The surface tension of liquid clusters in the Classical Nucleation Theory (CNT) is investigated using the Gibbs adsorption isotherm. A theoretical derivation is given that shows the relation between macroscopic (plain-surface) surface tension and the surface tension of microscopic spherical clusters of the CNT. An exemplary water – ethanol binary condensing system is studied. It is shown that by using the microscopic surface tension in nucleation calculations an exceptional agreement between theoretical and experimental nucleation rates is achieved.
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Měření tlaku sytých par kyseliny sírové – předběžné výsledky
 Krejčí, A. Petr ; Ždímal, Vladimír ; Schwarz, Jaroslav ; Hrubý, Jan
Sulphuric acid is crucial component in the initial stage of vapour to liquid transition – nucleation, very important step in environmental and industrial processes, as well as in public health issues. Involved processes are cloud droplet formation, flue gas dew point temperature estimates, as well as increased mortality in highly polluted areas. To model mentioned processes, it is essential to know equilibrium pressures of vapours in concern, sulphuric acid vapour especially.
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