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HYGROSCOPIC NUCLEI [5 records]
Record 1 - internal organization data 2023-01-04
Record 1, English
Record 1, Subject field(s)
- Chemistry
- Atmospheric Physics
Record 1, Main entry term, English
- equilibrium pressure
1, record 1, English, equilibrium%20pressure
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
In cloud physics, it is... of the utmost importance that surface tension should increase the equilibrium pressure with a decreasing-drop radius, while hygroscopic action should reduce it. Thus, only hygroscopie nuclei make the initial condensation phase in air possible. 2, record 1, English, - equilibrium%20pressure
Record 1, French
Record 1, Domaine(s)
- Chimie
- Physique de l'atmosphère
Record 1, Main entry term, French
- pression d'équilibre
1, record 1, French, pression%20d%27%C3%A9quilibre
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Pression qui permet à deux phases d'une même substance de rester en équilibre. 2, record 1, French, - pression%20d%27%C3%A9quilibre
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Química
- Física de la atmósfera
Record 1, Main entry term, Spanish
- presión de equilibrio
1, record 1, Spanish, presi%C3%B3n%20de%20equilibrio
correct, feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2004-06-02
Record 2, English
Record 2, Subject field(s)
- Meteorology
Record 2, Main entry term, English
- seeding agent
1, record 2, English, seeding%20agent
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
Substance used to provide condensation nuclei within a cloud(e. g., silver iodide, dry ice and other chemical hygroscopic particles) and dispersed from the ground, from an airplane or from a rocket. 1, record 2, English, - seeding%20agent
Record 2, French
Record 2, Domaine(s)
- Météorologie
Record 2, Main entry term, French
- agent d'ensemencement
1, record 2, French, agent%20d%27ensemencement
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Substance utilisée pour fournir des noyaux de condensation dans un nuage (p. ex. iodure d'argent, neige carbonique et autres particules chimiques hygroscopiques) et dispersée à partir du sol, d'un avion ou d'une fusée. 1, record 2, French, - agent%20d%27ensemencement
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Meteorología
Record 2, Main entry term, Spanish
- agente de siembra 1, record 2, Spanish, agente%20de%20siembra
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 DEF
Sustancia utilizada para producir núcleos de condensación en una nube (por ejemplo, yoduro de plata, nieve carbónica y otras partículas químicas higroscópicas), dispersada a partir del suelo, de una aeronave o de un cohete. 1, record 2, Spanish, - agente%20de%20siembra
Record 3 - internal organization data 2004-05-13
Record 3, English
Record 3, Subject field(s)
- Meteorology
Record 3, Main entry term, English
- hygroscopic nucleus
1, record 3, English, hygroscopic%20nucleus
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
A nucleus whose aqueous solution has an equilibrium vapour pressure lower than that of pure water. 2, record 3, English, - hygroscopic%20nucleus
Record number: 3, 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 3, English, - hygroscopic%20nucleus
Record 3, Key term(s)
- hygroscopic nuclei
Record 3, French
Record 3, Domaine(s)
- Météorologie
Record 3, Main entry term, French
- noyau hygroscopique
1, record 3, French, noyau%20hygroscopique
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, 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 3, French, - noyau%20hygroscopique
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Meteorología
Record 3, Main entry term, Spanish
- núcleo higroscópico
1, record 3, Spanish, n%C3%BAcleo%20higrosc%C3%B3pico
correct, masculine noun
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
Record 3, Textual support, Spanish
Record number: 3, 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 3, Spanish, - n%C3%BAcleo%20higrosc%C3%B3pico
Record 4 - internal organization data 2003-11-07
Record 4, English
Record 4, Subject field(s)
- Atmospheric, Climatic and Meteorological Phenomena
Record 4, Main entry term, English
- hygroscopic nucleus
1, record 4, English, hygroscopic%20nucleus
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
Small solid particles around which water condensates (cloud formation) 2, record 4, English, - hygroscopic%20nucleus
Record number: 4, 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 4, English, - hygroscopic%20nucleus
Record 4, Key term(s)
- hygroscopic nuclei
Record 4, French
Record 4, Domaine(s)
- Phénomènes météorologiques, climatiques et atmosphériques
Record 4, Main entry term, French
- noyau hygroscopique
1, record 4, French, noyau%20hygroscopique
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, 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 4, French, - noyau%20hygroscopique
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 1991-05-29
Record 5, English
Record 5, Subject field(s)
- Air Pollution
- Water Pollution
- Physics
Record 5, Main entry term, English
- hygroscopic substance
1, record 5, English, hygroscopic%20substance
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
- hygroscopic material 2, record 5, English, hygroscopic%20material
correct
Record 5, Textual support, English
Record number: 5, Textual support number: 1 CONT
Hygroscopic substances exhibit a chemical attraction for water, which encourages condensation of water vapour on them in preference to other substances. This same attraction is capable of causing condensation in an atmosphere which is not saturated. It appears that hygroscopic substances possess in general more satisfactory qualities as nuclei than do non-hygroscopic substances. 3, record 5, English, - hygroscopic%20substance
Record 5, French
Record 5, Domaine(s)
- Pollution de l'air
- Pollution de l'eau
- Physique
Record 5, Main entry term, French
- substance hygroscopique
1, record 5, French, substance%20hygroscopique
correct, feminine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
- matériel hygroscopique 2, record 5, French, mat%C3%A9riel%20hygroscopique
correct, masculine noun
Record 5, Textual support, French
Record number: 5, Textual support number: 1 CONT
noyaux de condensation. Ils sont constitués par des substances solides hygroscopiques, provenant soit de la mer (NaCl), soit de pollutions locales (résidus de combustion). Leur diamètre est compris entre 0,1 et 1 micromètre. Ils sont à l'origine de la formation des nuages, les fines gouttelettes d'eau se condensant dessus. 3, record 5, French, - substance%20hygroscopique
Record 5, Spanish
Record 5, Textual support, Spanish
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