A diagram of how the configuration of molecules/atoms differs for the solid, liquid, and gas phases.

A typical phase diagram. In Physical chemistry, Mineralogy, and Materials science, a phase diagram is a type of graph used to show the equilibrium conditions The dotted line gives the anomalous behaviour of water. Water is a common Chemical substance that is essential for the survival of all known forms of Life. The green lines show how the freezing point can vary with pressure, and the blue line shows how the boiling point can vary with pressure. Freezing Point (Chinese 冰點 Bīngdiǎn is a news journal in the People's Republic of China which has been the subject of controversy over its criticism The boiling point of a liquid is the temperature at which the Vapor pressure of the liquid equals the environmental pressure surrounding the liquid The red line shows the boundary where sublimation or deposition can occur. Sublimation of an element or compound is a transition from the Solid to Gas phase with no intermediate liquid stage Deposition is a process in which gas transforms into solid (also known as desublimation

Liquid is one of the principal states of matter. A state of matter (or physical state, or form of matter) has physical properties which are qualitatively different from other states of matter A liquid is a fluid that has the particles loose and can freely form a distinct surface at the boundaries of its bulk material. FLUID ( F ast L ight '''U'''ser '''I'''nterface D esigner is a graphical editor that is used to produce FLTK Source code The surface is a free surface where the liquid is not constrained by a container. In Physics a free surface is the surface of a body that is subject to neither perpendicular normal stress nor parallel Shear stress,such as the boundary ^[1]

Characteristics

A liquid's shape is confined to, not determined by, the container it fills. That is to say, liquid particles (normally molecules or clusters of molecules) are free to move about the volume, but they form a discrete surface that may not necessarily be the same as the vessel. In Chemistry, a molecule is defined as a sufficiently stable electrically neutral group of at least two Atoms in a definite arrangement held together by The same cannot be said about a gas; it can also be considered a fluid, but it must conform to the shape of the container entirely. This page is about the physical properties of gas as a state of matter

At a temperature below the boiling point, a liquid will evaporate until, if in a closed container, the concentration of the vapors belonging to the liquid reach an equilibrium partial pressure in the gas. The boiling point of a liquid is the temperature at which the Vapor pressure of the liquid equals the environmental pressure surrounding the liquid In a mixture of Ideal gases each gas has a partial pressure which is the pressure which the gas would have if it alone occupied the volume Therefore no liquid can exist permanently in a complete vacuum. This vacuum means "absence of matter" or "an empty area or space" for the cleaning appliance see Vacuum cleaner. The surface of the liquid behaves as an elastic membrane in which surface tension appears, allowing the formation of drops and bubbles. For the work of fiction see Surface Tension (short story. Surface tension is a property of the surface of a Liquid that causes it to A drop or droplet is a small volume of Liquid, bounded completely or almost completely by Free surfaces Surface tension Capillarity is another consequence of surface tension. Capillary action, capillarity, capillary motion, or wicking is the ability of a substance to draw another substance into it For the work of fiction see Surface Tension (short story. Surface tension is a property of the surface of a Liquid that causes it to Only liquids can display immiscibility. Miscibility is a term commonly used in Chemistry that refers to the property of Liquids to mix in all proportions forming a Homogeneous Solution The most familiar mixture of two immiscible liquids in everyday life is the vegetable oil and water in Italian salad dressing. Water is a common Chemical substance that is essential for the survival of all known forms of Life. A familiar set of miscible liquids is water and alcohol. Only liquids display wetting properties. Wetting is the contact between a liquid and a solid surface resulting from intermolecular interactions when the two are brought together Liquids at their respective boiling point change to gases (except when superheating occurs), and at their freezing points, change to solids (except when supercooling occurs). The boiling point of a liquid is the temperature at which the Vapor pressure of the liquid equals the environmental pressure surrounding the liquid This page is about the physical properties of gas as a state of matter See Superheater for the device used in Steam engines In Physics, superheating (sometimes referred to as boiling retardation Freezing Point (Chinese 冰點 Bīngdiǎn is a news journal in the People's Republic of China which has been the subject of controversy over its criticism A solid' object is in the States of matter characterized by resistance to Deformation and changes of Volume. Even below the boiling point liquid evaporates on the surface. Evaporation is the process by which Molecules in a Liquid state (e Objects immersed in liquids are subject to the phenomenon of buoyancy, which is also observed in other fluids, but is especially strong in liquids due to their high density. In Physics, buoyancy ( BrE IPA: /ˈbɔɪənsi/ is the upward Force on an object produced by the surrounding liquid or gas in which it is Liquid components in a mixture can often be separated from one another via fractional distillation. Fractional distillation is the separation of a mixture into its component parts or fractions such as in separating Chemical compounds by their Boiling point by heating

The volume of a quantity of liquid is fixed by its temperature and pressure. The volume of any solid plasma vacuum or theoretical object is how much three- Dimensional space it occupies often quantified numerically Temperature is a physical property of a system that underlies the common notions of hot and cold something that is hotter generally has the greater temperature Pressure (symbol 'p' is the force per unit Area applied to an object in a direction perpendicular to the surface Unless this volume exactly matches the volume of the container, a surface is observed. Liquids in a gravitational field, like all fluids, exert pressure on the sides of a container as well as on anything within the liquid itself. This pressure is transmitted in all directions and increases with depth. In the study of fluid dynamics, liquids are often treated as incompressible, especially when studying incompressible flow. In Thermodynamics and Fluid mechanics, compressibility is a measure of the relative volume change of a Fluid or Solid as a response In Fluid mechanics or more generally Continuum mechanics, an incompressible flow is Solid or Fluid flow in which the Divergence of

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

where:

= the density of the liquid (assumed constant)

= gravity

= the depth of the point below the surface. A gravitational field is a model used within Physics to explain how gravity exists in the universe Pressure (symbol 'p' is the force per unit Area applied to an object in a direction perpendicular to the surface The density of a material is defined as its Mass per unit Volume: \rho = \frac{m}{V} Different materials usually have different Gravitation is a natural Phenomenon by which objects with Mass attract one another

Note that this formula assumes that the pressure at the free surface is zero, and that surface tension effects may be neglected. For the work of fiction see Surface Tension (short story. Surface tension is a property of the surface of a Liquid that causes it to

Liquids generally expand when heated, and contract when cooled. Water between 0 °C and 4 °C is a notable exception; this is why ice floats. Water is a common Chemical substance that is essential for the survival of all known forms of Life. Ice is a Solid phase, usually crystalline, of a Non-metalic substance that is liquid or gas at Room temperature, such as Ammonia Liquids have little compressibility : water, for example, does not change its density appreciably unless subject to pressure of the order of hundreds bar. In Thermodynamics and Fluid mechanics, compressibility is a measure of the relative volume change of a Fluid or Solid as a response The density of a material is defined as its Mass per unit Volume: \rho = \frac{m}{V} Different materials usually have different

Examples of everyday liquids besides water are mineral oil and gasoline. Mineral oil or liquid Petroleum is a By-product in the Distillation of Petroleum to produce Gasoline and other petroleum There are also mixtures such as milk, blood, and a wide variety of aqueous solutions such as household bleach. Milk is an opaque white liquid produced by the Mammary glands of female Mammals (including Monotremes. A bleach is a Chemical that removes color or whitens often via Oxidation. Only six elements are liquid at or about room temperature and pressure: mercury (densest liquid), bromine, francium, caesium, gallium and rubidium. Mercury (ˈmɜrkjʊri also called quicksilver or hydrargyrum, is a Chemical element with the symbol Hg ( Latinized hydrargyrum Francium (ˈfrænsiəm formerly known as eka-caesium and actinium K, is a Chemical element that has the symbol Fr and Caesium or cesium (ˈsiːziəm is the Chemical element with the symbol Cs and Atomic number 55 Gallium (ˈgæliəm is a Chemical element that has the symbol Ga and Atomic number 31 Rubidium (ruːˈbɪdiəm /rəˈbɪdiəm/ is a Chemical element with the symbol Rb and Atomic number 37 ^[2] In terms of planetary habitability, liquid water is required for the existence of life. Planetary habitability is the measure of a Planet 's or a Natural satellite 's potential to develop and sustain Life. Life is a state that distinguishes Organisms from non-living objects such as non-life and dead organisms being manifested by growth through Metabolism

Liquid measures

Quantities of liquids are commonly measured in units of volume. The volume of any solid plasma vacuum or theoretical object is how much three- Dimensional space it occupies often quantified numerically These include the litre, not an SI unit, and the cubic metre (m³) which is an SI unit. CM3 redirects here If you were looking for the 3rd game in the Cooking Mama series abbreviated as CM3 see here.

See also

• Ripple (fluid dynamics)
• Multiphasic liquid
• Viscosity
• Surface tension
• Sonoluminescence, emission of short bursts of light from imploding bubbles in a liquid when excited by sound. A capillary wave is a Wave travelling along the interface between two fluids whose dynamics are dominated by the effects of Surface tension. A multiphasic liquid, also known as a multiphasic liquid-liquid-liquid system, is a Mixture consisting of more than two immiscible Liquid Viscosity is a measure of the resistance of a Fluid which is being deformed by either Shear stress or Extensional stress. For the work of fiction see Surface Tension (short story. Surface tension is a property of the surface of a Liquid that causes it to Sonoluminescence is the emission of short bursts of Light from imploding bubbles in a Liquid when excited by Sound.

Notes