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HYGROSCOPIC NUCLEI [2 records]
Record 1 - internal organization data 2004-05-13
Record 1, English
Record 1, Subject field(s)
- Meteorology
Record 1, Main entry term, English
- hygroscopic nucleus
1, record 1, English, hygroscopic%20nucleus
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A nucleus whose aqueous solution has an equilibrium vapour pressure lower than that of pure water. 2, record 1, English, - hygroscopic%20nucleus
Record number: 1, Textual support number: 1 CONT
The exact form taken by hygroscopic nuclei is most frequently that of droplets of solution. It was established by Lord Kelvin that the vapour pressure over the surface of a water drop in equilibrium with its surroundings is greater than that over a plane water surface. ... The vapour pressure over the surface of a solution is always less than that over pure water at the same temperature. For this reason, a solution is hygroscopic, and absorbs water vapour from the surrounding air, becoming diluted in the process. From this it follows that nuclei in the form of droplets of solution may be expected to be satisfactory condensation kerns. When particles of hygroscopic substances are exposed to sufficiently damp air, they become droplets of solution. 3, record 1, English, - hygroscopic%20nucleus
Record 1, Key term(s)
- hygroscopic nuclei
Record 1, French
Record 1, Domaine(s)
- Météorologie
Record 1, Main entry term, French
- noyau hygroscopique
1, record 1, French, noyau%20hygroscopique
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Noyau dont la solution aqueuse a une pression de vapeur en équilibre plus basse que celle de l'eau pure. 2, record 1, French, - noyau%20hygroscopique
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Meteorología
Record 1, Main entry term, Spanish
- núcleo higroscópico
1, record 1, Spanish, n%C3%BAcleo%20higrosc%C3%B3pico
correct, masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Núcleo cuya solución acuosa tiene una presión de vapor en equilibrio más baja que la del agua pura. 2, record 1, Spanish, - n%C3%BAcleo%20higrosc%C3%B3pico
Record 2 - internal organization data 2003-11-07
Record 2, English
Record 2, Subject field(s)
- Atmospheric, Climatic and Meteorological Phenomena
Record 2, Main entry term, English
- hygroscopic nucleus
1, record 2, English, hygroscopic%20nucleus
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
Small solid particles around which water condensates (cloud formation) 2, record 2, English, - hygroscopic%20nucleus
Record number: 2, Textual support number: 1 CONT
Condensation on hygroscopic nuclei may begin at a relative humidity much lower than 100 per cent (about 75 per cent for sodium chloride); while on so-called non-hygroscopic nuclei, which merely furnish sufficiently large (by molecular standards) wettable surfaces, relative humidities of nearly 100 per cent are required. 3, record 2, English, - hygroscopic%20nucleus
Record 2, Key term(s)
- hygroscopic nuclei
Record 2, French
Record 2, Domaine(s)
- Phénomènes météorologiques, climatiques et atmosphériques
Record 2, Main entry term, French
- noyau hygroscopique
1, record 2, French, noyau%20hygroscopique
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Noyau de condensation, constitué par des solutions aqueuses de sels (chlorures de magnésium, de sodium, de calcium) ou d'acide (sulfurique, nitreux), intervenant dans la genèse des pluies. 2, record 2, French, - noyau%20hygroscopique
Record 2, Spanish
Record 2, Textual support, Spanish
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