Liquid

A liquid (a phase of matter) is a fluid whose volume is fixed under conditions of constant temperature and pressure; and, whose shape is usually determined by the container it fills. Furthermore, liquids exert pressure on the sides of a container as well as on anything within the liquid itself; this pressure is transmitted undiminished in all directions.

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If a liquid is at rest in a uniform gravitational field, the pressure p at any point is given by

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:p= ho gz

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where ho is the density of the liquid (assumed constant) and z is the depth of the point below the surface. Note that this formula assumes that the pressure at the free surface is zero, relative to the surface level.

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Liquids have traits of surface tension and capillarity; they generally expand when heated, and contract when cooled. Objects immersed in liquids are subject to the phenomenon of buoyancy.

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Liquids at their respective boiling point change to gases, and at their freezing points, change to a solids. Via fractional distillation, liquids can be separated from one another as they vaporise at their own individual boiling points. Cohesion between molecules of liquid is insufficient to prevent those at free surface from evaporating.

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It should be noted that glass at normal temperatures is not a "supercooled liquid", but a solid. See the article on glass for more details.

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Phase of matter: REDIRECT Phase (matter)...

Fluid: FLUID (Fast Light User Interface Designer) is a graphical editor that is used to produce FLTK source code. FLUID edits and saves its state in text .fl files, which can be edited in a text editor for finer control over display and behavior....

Volume: Volume, also called capacity, is a quantification of how much space an object occupies. The SI unit for volume is the cubic metre. American spelling is cubic meter....

Liquid related Images and Photos (experimental)

Liquid Amber	LIQUID LUNCH	Liquid Bookmark	Liquid Landscape
Liquid Liquid: Slip In & Out Of Phenomenon CD	Liquid Liquid: Slip In & Out Of Phenomenon CD	Microbe Liquid Soap Dispenser	Birth of Liquid Desires c.1932
Birth of Liquid Desires c.1932	Step Into Liquid	Step Into Liquid 2003	Liquid Metal from the Blast Furnace Running on the Smelting-House Floor to Form Pig Iron