14486
Our results reveal that in the sphere - plate gap , stable coexistence of the liquid and vapor phases is only possible when the meniscus is concave ( which corresponds to either capillary condensation or capillary evaporation ) , and when the sphere and plate are separated by a distance less than a critical amount ( where that critical amount is always less than the Kelvin radius ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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