Water condenses into visible droplets after evaporating from a cup of hot tea

Condensation is the change in matter of a substance to a denser phase, such as a gas (or vapor) to a liquid.^[1] Condensation commonly occurs when a vapor is cooled to a liquid, but can also occur if a vapor is compressed (i.e., pressure on it increased) into a liquid, or undergoes a combination of cooling and compression. Liquid which has been condensed from a vapor is called condensate. A device or unit used to condense vapors into liquid is called a condenser. Condensers are used in heat exchangers which have various designs, and come in many sizes ranging from rather small (hand-held) to very large. Look up condensation in Wiktionary, the free dictionary. ... Image File history File links Watervapor_cup. ... Image File history File links Watervapor_cup. ... Gas phase particles (atoms, molecules, or ions) move around freely Gas is one of the four major states of matter, consisting of freely moving atoms or molecules without a definite shape and without a definite volume. ... For other uses, see Liquid (disambiguation). ... This article is about pressure in the physical sciences. ... In systems involving heat transfer, a condenser is a heat exchanger which condenses a substance from its gaseous to its liquid state. ... A heat exchanger is a device built for efficient heat transfer from one fluid to another, whether the fluids are separated by a solid wall so that they never mix, or the fluids are directly contacted. ...

The water seen on the outside of a cold glass on a hot day is an example of condensation.

Condensation of water in nature

Dew on a spider web

Water vapor from air which naturally condenses on cold surfaces into liquid water is called dew. Water vapor will only condense onto another surface when that surface is cooler than the temperature of the water vapor, or when the water vapor equilibrium in air, i. e. saturation humidity, has been exceeded. When water vapor condenses onto a surface, a net warming occurs on that surface. Image File history File linksMetadata Download high resolution version (1200x808, 904 KB) Spider Web Covered with Dew Drops. ... Image File history File linksMetadata Download high resolution version (1200x808, 904 KB) Spider Web Covered with Dew Drops. ... Dew on a spider web Dew is water in the form of droplets that appears on thin, exposed objects in the morning or evening. ... Dew on a spider web Dew is water in the form of droplets that appears on thin, exposed objects in the morning or evening. ... For other uses, see Temperature (disambiguation). ... Humidity is the amount of water vapor in air. ...

Condensation on a cold bottle of water.

The water molecule brings a parcel of heat with it. In turn, the temperature of the atmosphere drops very slightly. Image File history File links Size of this preview: 800 × 600 pixel Image in higher resolution (2048 × 1536 pixel, file size: 847 KB, MIME type: image/jpeg) Taken by User:Acdx in 2006. ... Image File history File links Size of this preview: 800 × 600 pixel Image in higher resolution (2048 × 1536 pixel, file size: 847 KB, MIME type: image/jpeg) Taken by User:Acdx in 2006. ... A 1. ... In thermochemistry, latent heat is the amount of energy in the form of heat released or absorbed by a substance during a change of phase (i. ... For other uses, see Atmosphere (disambiguation). ...

In the atmosphere, condensation of water vapor is what produces clouds. The dew point of an air parcel is the temperature to which it must cool before condensation in the air begins to form. Air redirects here. ... For other uses, see Cloud (disambiguation). ... The dew point (or dewpoint) is the temperature to which a given parcel of air must be cooled, at constant barometric pressure, for water vapor to condense into water. ...

Also, a net condensation of water vapor occurs on surfaces when the temperature of the surface is at or below the dew point temperature of the atmosphere. Deposition is a type of condensation. Deposition, the direct formation of ice from water vapor, is a type of condensation. Frost and snow are examples of deposition. It has been suggested that Deposition (meteorology) be merged into this article or section. ... For other uses, see Snow (disambiguation). ...

Condensation in buildings

Condensation is the most common form of dampness encountered in buildings. In buildings the internal air can have a high level of relative humidity due to the activity of the occupants (e.g. cooking, drying clothes, breathing etc.). When this air comes into contact with cold surfaces such as windows and cold walls it can condense, causing dampness.^[2] the change from water vapor to liquid water (dew,fog,clouds).

Applications of condensation

Condensation is a crucial component of distillation, an important application in laboratory and industrial chemistry application. Laboratory distillation set-up: 1: Heat source 2: Still pot 3: Still head 4: Thermometer/Boiling point temperature 5: Condenser 6: Cooling water in 7: Cooling water out 8: Distillate/receiving flask 9: Vacuum/gas inlet 10: Still receiver 11: Heat control 12: Stirrer speed control 13: Stirrer/heat plate...

Because condensation is a naturally occurring phenomenon, it can often be used to generate water in large quantities for human use. In fact, there are many structures that are made solely for the purpose of collecting water from condensation, such as fog fences, air wells and dew ponds. Such systems can often be used to retain soil moisture in areas where active desertification is occurring. In fact, certain organizations use education about water condensers in efforts to effectively aid such areas.^[3] A fog fence is an apparatus for collecting liquid water from fog, consisting of a fine mesh deployed in a manner similar to a fence. ... Dew pond near Chanctonbury Ring, West Sussex. ... Ship stranded by the retreat of the Aral Sea Desertification is the degradation of land in arid, semi arid and dry sub-humid areas resulting from various climatic variations, but primarily from human activities. ...

References

• Condensation principles (Picture).
• Condensation & Evaporation Experiment (Video).

1. ^ International Union of Pure and Applied Chemistry. "condensation in atmospheric chemistry". Compendium of Chemical Terminology Internet edition.
2. ^ http://www.buildingpreservation.com/Condensation.htm Building Preservation (Condensation - the basics)
3. ^ http://www.fogquest.org/

IUPAC logo The International Union of Pure and Applied Chemistry (IUPAC) (Pronounced as eye-you-pack) is an international non-governmental organization established in 1919 devoted to the advancement of chemistry. ... Compendium of Chemical Terminology (ISBN 0-86542-684-8) is a book published by IUPAC containing internationally accepted definitions for terms in chemistry. ...

See also

• Kelvin equation
• Phase diagram
• Phase transition
• Condenser (heat transfer)
• Surface condenser

There are very few or no other articles that link to this one. ... In physical chemistry, mineralogy, and materials science, a phase diagram is a type of graph used to show the equilibrium conditions between the thermodynamically-distinct phases. ... This diagram shows the nomenclature for the different phase transitions. ... In systems involving heat transfer, a condenser is a heat exchanger which condenses a substance from its gaseous to its liquid state. ... Surface condenser is the commonly used term for a shell and tube heat exchanger installed on the exhaust steam from a steam turbine in thermal power stations. ...

External links

• Condensation Myths and Facts

From	To
	Solid	Liquid	Gas	Plasma
Solid	Solid-Solid Transformation	Melting	Sublimation	-
Liquid	Freezing	N/A	Boiling/Evaporation	-
Gas	Deposition	Condensation	N/A	Ionization
Plasma	-	-	Recombination/Deionization	N/A

love ??? For other uses, see Solid (disambiguation). ... For other uses, see Liquid (disambiguation). ... Gas phase particles (atoms, molecules, or ions) move around freely Gas is one of the four major states of matter, consisting of freely moving atoms or molecules without a definite shape and without a definite volume. ... For other uses, see Plasma. ... In physics, melting is the process of heating a solid substance to a point (called the melting point) where it turns into a liquid. ... This article does not cite any references or sources. ... In physics and chemistry, freezing is the process whereby a liquid turns to a solid. ... Boiling, a type of phase transition, is the rapid vaporization of a liquid, which typically occurs when a liquid is heated to its boiling point, the temperature at which the vapor pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding atmospheric pressure. ... “Vaporization” redirects here. ... It has been suggested that Deposition (meteorology) be merged into this article or section. ... Ionization is the physical process of converting an atom or molecule into an ion by changing the difference between the number of protons and electrons. ...

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