Editing Sublimation (phase transition) (section)

===Naphthalene===
[[File:Sublimation reaction of naphthalene.jpg|thumb|Experimental set up for the sublimation reaction of [[naphthalene]], solid naphthalene sublimes and form the crystal-like structure at the bottom of the [[watch glass]]]]
[[File:Crystal-like sublimated naphthalene.jpg|thumb|Solid compound of [[naphthalene]] sublimed to form a crystal-like structure on the cool surface.]]

[[Naphthalene]], an organic compound commonly found in pesticides such as [[mothball]]s, sublimes easily because it is made of non-polar molecules that are held together only by [[Van der Waals force|van der Waals]] intermolecular forces. Naphthalene is a solid that sublimes gradually at [[standard temperature and pressure]],<ref>
{{cite book
|last=Caroll |first=J.
|year=2014
|title=Natural Gas Hydrates
|isbn=9780128005750
|page=16
|publisher=Gulf Professional
}}</ref> at a high rate, with the critical sublimation point at around {{convert|80|C|F}}.<ref>
{{cite web
|author=Staff writer(s)
|date=2015
|title=what solids go through sublimation?
|publisher=National Science Foundation and UCSB School-University partnership
|url=http://scienceline.ucsb.edu/getkey.php?key=4306
|access-date=13 November 2015
}}</ref> At low temperature, its vapour pressure is high enough, 1{{nbsp}}mmHg at 53{{nbsp}}°C,<ref>
{{cite book
|last=Pavia |first=D.
|year=2005
|title=Introduction to organic laboratory technique
|isbn=978-0534408336
|pages=781–782
|publisher=Thomson Brooks/Cole
}}</ref> to make the solid form of naphthalene evaporate into gas. On cool surfaces, the naphthalene vapours will solidify to form needle-like crystals.