Film Boiling
If a surface heating the liquid is significantly hotter than the liquid then film boiling will occur, where a thin layer of vapor, which has low thermal conductivity, insulates the surface. This condition of a vapor film insulating the surface from the liquid characterizes film boiling.
In distillation, boiling is used in separating mixtures. This is possible because the vapor rising from a boiling fluid generally has a ratio of components different from that in the liquid.
Read more about this topic: Boiling
Famous quotes containing the words film and/or boiling:
“Lay not that flattering unction to your soul,
That not your trespass but my madness speaks;
It will but skin and film the ulcerous place,
Whilst rank corruption, mining all within,
Infects unseen.”
—William Shakespeare (1564–1616)
“Most people hew the battlements of life from compromise, erecting their impregnable keeps from judicious submissions, fabricating their philosophical drawbacks from emotional retractions and scalding marauders in the boiling oil of sour grapes.”
—Zelda Fitzgerald (1900–1948)