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What is aerogels?

Updated: 4/28/2022
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Aerogel is a synthetic material derived from gel in which the liquid in the gel has been replaced with a gas. It was invented by Samuel Stephens Kistler in 1931.

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An aerogel is a porous, ultralight solid substance in which the liquid component is replaced with gas.

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Draw the diagrams to show how particles of a solid liquid and gas are distriduted?

A substance in a solid phase is relatively rigid, has a definite volume and shape.The atoms or molecules that comprise a solid are packed close together and are not compressible.Because all solids have some thermal energy, its atoms do vibrate. However, this movement is very small and very rapid, and cannot be observed under ordinary conditions.What are the different types of solids?There are four types of crystalline solids --Ionic solids-- These substances have a definite melting point and contain ionic bonds. An example would be sodium chloride (NaCl). View the 3-D structure of a salt crystal.Covalent solids -- These substance appear as a single giant molecule made up of an almost endless number of covalent bonds. An example would be graphite. View the 3-D structure of graphite).Molecular solids are represented as repeating units made up of molecules. An example would be ice. View the 3-D structure of ice.Metallic solids are repeating units made up of metal atoms. The valence electrons in metals are able to jump from atom to atom.Amorphous solidsAmorphous solids do not have a definite melting point or regular repeating units. An amorphous solid is a solid in which there is no long-range order of the positions of the atoms unlike those in crystalline solids. An example of an amorphous solid is window glass. In addition many polymers such as polystyrene are amorphous.Amorphous solids can exist in two distinct states, the 'rubbery' state and the 'glassy' state. The temperature at which they transition between the glassy and rubbery states is called their glass transition temperature or Tg.Interesting Note on Solids: While no mass at all is an impossibility, aerogels seem to come pretty close. Aerogels are the lightest solids and have a density of 1.9 mg per cm3 or 1.9 kg/m3 (526.3 times lighter than water). Sometimes called frozen smoke, aerogels are open-cell polymers with pores less than 50 nanometers in diameter.What are the properties of a Liquid?Liquids have a definite volume, but are able to change their shape by flowing.Liquids are similar to solids in that the particles touch. However the particles are able to move around.Since particles are able to touch the densities of liquid will be close to that of a solid.Since the liquid molecules can move they will take the shape of their container.What are the specific properties of liquids?Viscosity --The resistance of a liquid to flow is called its viscositySurface Tension -- The result of attraction between molecules of a liquid which causes the surface of the liquid to act as a thin elastic film under tension. Surface tension causes water to form spherical drops.Vapor Pressure -- The pressure that a solid or liquid exerts when it is in equilibrium with its vapor at a given temperature.Boiling Point -- when vapor pressure = atmospheric pressure.What are the properties of a Gas?Gases have no definite volume or shape. If unconstrained gases will spread out indefinitely. If confined they will take the shape of their container. This is because gas particle have enough energy to overcome attractive forces. Each of the particles are well separated resulting in a very low density.Gas Laws -- There are several excellent interactive java applets which we recommend.Molecular Model for an Ideal Gas2 dimensional gas of hard spheresGas SimulationBrownian Motion for GasWhat is the fourth state of matter?The fourth state of matter is plasma. Plasma is an ionized gas, a gas into which sufficient energy is provided to free electrons from atoms or molecules and to allow both species, ions and electrons, to coexist. In effect a plasma is a cloud of protons, neutrons and electrons where all the electrons have come loose from their respective molecules and atoms, giving the plasma the ability to act as a whole rather than as a bunch of atoms. Plasmas are the most common state of matter in the universe comprising more than 99% of our visible universe and most of that not visible. Plasma occurs naturally and makes up the stuff of our sun, the core of stars and occurs in quasars, x-ray beam emitting pulsars, and supernovas. On earth, plasma is naturally occurring in flames, lightning and the auroras. Most space plasmas have a very low density, for example the Solar Wind which averages only 10 particles per cubic-cm. Inter-particle collisions are unlikely - hence these plasmas are termed collisionless.And now a fifth state -- Bose Einstein?The collapse of the atoms into a single quantum state is known as Bose condensation or Bose-Einstein condensation is now considered a 5th state of matter.Recently, scientists have discovered the Bose-Einstein condensate, which can be thought of as the opposite of a plasma. It occurs at ultra-low temperature, close to the point that the atoms are not moving at all. A Bose-Einstein condensate is a gaseous superfluid phase formed by atoms cooled to temperatures very near to absolute zero. The first such condensate was produced by Eric Cornell and Carl Wieman in 1995 at the University of Colorado at Boulder, using a gas of rubidium atoms cooled to 170 nanokelvins (nK). --Under such conditions, a large fraction of the atoms collapse into the lowest quantum state, producing a superfluid. This phenomenon was predicted in the 1920s by Satyendra Nath Bose and Albert Einstein, based on Bose's work on the statistical mechanics of photons, which was then formalized and generalized by Einstein.


Related questions

Aerogel is how many times less dense than glass?

Aerogels are a diverse class of materials which can be composed of many different substances. The lowest density aerogels that have ever been produced were silica aerogels about 0.0011 g/cm3 in density, making them about 2002 times lower density than fused silica, a high-purity form of glass which has a density of 2.203 g/cm3. This is the most useful direct comparison since the composition of silica aerogels and fused silica are the most alike. In comparison to common soda-lime glass, which contains elements other than silicon, oxygen, and hydrogen and has a density of about 2.52 g/cm3, these ultralow density aerogels are 2291 times lower density. Typically, silica aerogels and non-silica aerogels range from about 0.01 g/cm3 to 0.5 g/cm3 in density, so a useful range to report would be "between 5 to 250 times lower in density than common soda-lime glass, and as low as 2290 times for the lightest aerogels ever produced".


What fabric is the strongest?

Carbon fiber and Kevlar are both very tough and strong but the strongest and lightest material on the face of the earth is Aerogels. Aerogels are made of 90%-99% air and usually silica but can be any material It has tensile strengths of 16 KPa or higher. It is an extremal good insulator Aspen Aerogels has hiking gear that they are selling.


What is an object that heat does not travel through quickly?

In general a heat insulator, for a more specific answer try aerogels


What is the least dense solid element?

Aerogels - but this is an artificial compound. Among naturally occurring metals, Lithium (Li).


What do scientists sometimes call aerogel?

Aerogels are a class of extremely lightweight materials that have air suspended in some solid material, in which the ratio of air to solid is extremely high. The usual kind of materials that we see in the "bluish" aerogel is made of silica. Aerogels are very heat-resistant, and are used by scientists in the aerospace industry to make lightweight insulators, or as a material that is used to catch space dust.


What are aerogels used for?

The most common use for Aerogel is for thermal insulation. Silica Aerogel has been used to help insulate the Mars Rover and protected all the wiring from the extreme temperatures it faces in outer space.


What is the dense solid?

Aerogel is a manufactured material with the lowest known density of any solid. It is derived from a gel in which the liquid component of the gel has been replaced with a gas. The result is an extremely low-density solid with several remarkable properties, most notably its effectiveness as a thermal insulator and its extremely low density. It is nicknamed frozen smoke, solid smoke or blue smoke due to its translucent nature and the way light scatters in the material; however, it feels like expanded polystyrene (styrofoam) to the touch.Aerogels are produced by extracting the liquid component of a gel through supercritical drying. This allows the liquid to be slowly drawn off without causing the solid matrix in the gel to collapse from capillary action, as would happen with conventional evaporation. The first aerogels were produced from silica gels. Kistler's later work involved aerogels based on alumina, chromia and tin oxide. Carbon aerogels were first developed in the late 1980s.


What is the lightest matter on Earth?

Aerogel is a manufactured material with the lowest known density of any solid. It is derived from a gel in which the liquid component of the gel has been replaced with a gas. The result is an extremely low-density solid with several remarkable properties, most notably its effectiveness as a thermal insulator and its extremely low density. It is nicknamed frozen smoke, solid smoke or blue smoke due to its translucent nature and the way light scatters in the material; however, it feels like expanded polystyrene (styrofoam) to the touch.Aerogels are produced by extracting the liquid component of a gel through supercritical drying. This allows the liquid to be slowly drawn off without causing the solid matrix in the gel to collapse from capillary action, as would happen with conventional evaporation. The first aerogels were produced from silica gels. Kistler's later work involved aerogels based on alumina, chromia and tin oxide. Carbon aerogels were first developed in the late 1980s.


What is the least dense gas?

Aerogel is a manufactured material with the lowest known density of any solid. It is derived from a gel in which the liquid component of the gel has been replaced with a gas. The result is an extremely low-density solid with several remarkable properties, most notably its effectiveness as a thermal insulator and its extremely low density. It is nicknamed frozen smoke, solid smoke or blue smoke due to its translucent nature and the way light scatters in the material; however, it feels like expanded polystyrene (styrofoam) to the touch.Aerogels are produced by extracting the liquid component of a gel through supercritical drying. This allows the liquid to be slowly drawn off without causing the solid matrix in the gel to collapse from capillary action, as would happen with conventional evaporation. The first aerogels were produced from silica gels. Kistler's later work involved aerogels based on alumina, chromia and tin oxide. Carbon aerogels were first developed in the late 1980s.


Is it possible to create a liquid or solid that is lighter than air?

Aerogel is a manufactured material with the lowest known density of any solid. It is derived from a gel in which the liquid component of the gel has been replaced with a gas. The result is an extremely low-density solid with several remarkable properties, most notably its effectiveness as a thermal insulator and its extremely low density. It is nicknamed frozen smoke, solid smoke or blue smoke due to its translucent nature and the way light scatters in the material; however, it feels like expanded polystyrene (styrofoam) to the touch.Aerogels are produced by extracting the liquid component of a gel through supercritical drying. This allows the liquid to be slowly drawn off without causing the solid matrix in the gel to collapse from capillary action, as would happen with conventional evaporation. The first aerogels were produced from silica gels. Kistler's later work involved aerogels based on alumina, chromia and tin oxide. Carbon aerogels were first developed in the late 1980s.


What are some eight letter words with 1st letter A and 3rd letter R and 5th letter G?

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 6 words with the pattern A-R-G---. That is, eight letter words with 1st letter A and 3rd letter R and 5th letter G. In alphabetical order, they are: abrogate acrogens aerogels aerogram arrogant arrogate


What are some eight letter words with 1st letter A and 4th letter O and 5th letter G?

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 11 words with the pattern A--OG---. That is, eight letter words with 1st letter A and 4th letter O and 5th letter G. In alphabetical order, they are: abrogate acrogens aerogels aerogram allogamy arrogant arrogate autogamy autogeny autogiro autogyro