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Answered 2012-03-01 11:55:48

Absorption and Adsorption refer to different phenomena. Their only commonality is that both involve the physical transfer of a volume of mass or energy. Sorption is the inclusive term, referring to both processes. Desorption is the inclusive term of opposite meaning.


Refers to a transfer of a volume into a volume. It is a permeation or dissolution of a volume of energy or mass (absorbate) into another volume of energy or mass (absorbent). Examples:

Chlorine gas dissolving into water,

Electromagnetic energy (photons of light) into an object: as a seat-belt buckle in sunlight,

Electromagnetic energy (photons of light) into an atom,

Gold dissolving into Mercury.


Refers to the transfer of a volume onto a surface. It is an accumulation, or massing, of energy or matter (adsorbate) onto a surface (adsorbent). Examples:

Buildup of static charge on a glass rod,

Organic substances onto activated charcoal.

Proteins onto biomaterials.

Airborne particles onto a charged surface (ionic filters).

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Sorption is the process in which one substance takes up and holds another by either absorption or adsorption. A cryopump is a vacuum pump that traps gases and vapours by condensing them on a cold surface. They are only effective on some gases, depending on the freezing and boiling points of the gas relative to the cryopump's temperature. The only difference between the two processes that I have observed is the methods in which they trap the gases. Also, sorption is a process while cryopump is a machine. An example of a material that uses sorption or has a high adsorption rate is zeolite.

The sorption of a contaminant is one of the significant processes that can hinder the remediation of a ground water aquifer system. Sorption is defined as being the attraction of an aqueous species to the surface of a solid.(Alley, 1993). In ground water the sorbing species , usually an organic compound, is called thesorbate, and the solid media, usually soil, to which the sorbate is attracted is known as the sorbent.The underlying principle behind this attraction results from some form of bonding between the contaminant and adsorption receptor sites on the solid. The amount of sorption that occurs in groundwater is dependent on particular characteristics of the sorbate and sorbent. The amount of sorption that takes place on organic matter also follows various isotherms or kinetic rates.Sorption tends to cause contaminants to move more slowly than the groundwater, therefore the effects must be taken into consideration when calculating how far the contaminant has traveled in a given time period.The following animation sequence displays how sorption can affect two separate particles' velocity. Basically, the animation shows a vertical cut from a soil column, interspersed particles of organic matter, and two contaminants that are moving through the soil.Adsorption vs. AbsorptionSorption reactions generally occur over a short period of time, however if the adsorbed contaminant begins to be incorporated into the structure of the sorbent , a slow occurring reaction, known as absorption, begins to take place. To be more precise , the difference between adsorption and absorption is that adsorption is the attraction between the outer surface of a solid particle and a contaminant, whereas absorption is the uptake of the contaminant into the physical structure of the solid. This figure shows the primary differences between intraparticle absorption versus surface adsorption. The main difference being that some contaminant particles are attracted to the outer surface of the soil particle, while another has been actually incorporated into the particle's structure.

Contaminant adsorption is the variety of contaminants in the environment. Absorption in saturated ground water is the process that is used to get rid of pollution from groundwater.

Ion exchange itself is an adsorption reaction too. The question is probably about the difference between ion exchange and specific sorption. In ion exchange, an ion sorbs to the surface by removing an other ion of the same valence or multiple ions of lower valence. In this way, ion exchange never changes the surface charge. Specific sorption describes the inner sphere complexing of an ion to the surface without the need for other ions to be removed. In this way, specific sorption is able to alter the surface charge.

Sorption is a physical and chemical process by which onesubstance becomes attached to another. Specific cases of sorption are treated in the following articles:Absorption - the incorporation of a substance in one state into another of a different state (e.g., liquids being absorbed by asolid or gases being absorbed by a liquid);Adsorption - the physical adherence or bonding of ions andmolecules onto the surface of another phase (e.g., reagents adsorbed to a solid catalyst surface);Ion exchange - an exchange of ions between two electrolytesor between an electrolyte solution and a complex.

Absorption and Adsorption refer to different phenomena. Their only commonality is that both involve the physical transfer of a volume of mass or energy. Sorption is the inclusive term, referring to both processes. Desorption is the inclusive term of opposite meaning.Absorption:Refers to a transfer of a volume into a volume. It is a permeation or dissolution of a volume of energy or mass (absorbate) into another volume of energy or mass (absorbent). Examples:Chlorine gas dissolving into water,Electromagnetic energy (photons of light) into an object: as a seat-belt buckle in sunlight,Electromagnetic energy (photons of light) into an atom,Gold dissolving into mercury.Adsorption:Refers to the transfer of a volume onto a surface. It is an accumulation, or massing, of energy or matter (adsorbate) onto a surface (adsorbent). Examples:Buildup of static charge on a glass rod,Organic substances onto activated charcoal.Proteins onto biomaterials.Airborne particles onto a charged surface (ionic filters).See related Links below for more information.

Absorbtion is the misspelling of the word Absorption.

Adsorption is when a substance gets absorbed INTOthe surface of another substance.Condensation is when a substance collects ON the surface of another substance.

Answer 2Absorption is the process in which a fluid is dissolved by a liquid or a solid (absorbent).Adsorption is the process in which atoms, ions or molecules from a substance (it could be gas, liquid or dissolved solid) adhere to a surface of the adsorbent. Adsorption is a surface-based process where a film of adsorbate is created on the surface while absorption involves the entire volume of the absorbing substance. There are some adsorption analyzers (eg V-Sorb 2800P) by using gas (like N2, Kr etc) as adsorbates to attach on materials to get samples adsorption isotherms, then to know surface area, pore size and so on data.Adsorption: Some of the industrial applications for adsorption are air-conditioning, adsorption chillers, synthetic resin and water purification. An adsorption chiller does not require moving parts and hence is quiet. In pharmaceutical industry applications, adsorption is used as a means to prolong neurological exposure to specific drugs or parts thereof. Adsorption of molecules onto polymer surfaces is used in various applications such as in the development of non-stick coatings and in various biomedical devices.Absorption: The common commercial uses of absorption cycle are absorption chillers for space cooling applications, ice production, cold storage, turbine inlet cooling. High efficiency operation, environmentally friendly refrigerants, clean-burning fuels and few moving parts that require maintenance make absorption a very good choice for consumers. The process of gas absorption by a liquid is used in hydrogenation of oils and carbonation of beverages.Answer 1 Adsorption and absorption are two different things.Absorption is the chemical integration of one chemical into another. When you drink a glass of water, you are absorbing it, as the water becomes part of you.Adsorption occurs when one substance holds another via physical bonds. If you spill a glass of water on your shirt, it is adsorbed as the fibres will hold the water until heat dries out the shirt.

what is the use of absorption tower? give me definition of absorption tower? types of absorption tower? advantages of absorption tower?

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Emission is something be spread out, while absorption is something being taken in.

Attenuation refers to any reduction in intensity including both scattering and absorption.

I'll try to help you out: The difference between absorption and scrubbing process as regards what?? We don't know what you are talking about - not enough information!

Wicking is a kind of absorption, in which capillary pressure is the only cause. The absorption may happen by external pressure and/or capillary pressure.

Partition Chromatography is a liquid liquid extraction which involves two solvents while adsorption chromatography is a liquid solid extraction which involves a solid stationary phase & a liquid mobile phase.

Emission spectrum: lines emitted from an atom.Absorption spectrum: absorbed wavelengths of a molecule.

Target costing is when you have a goal for the project and its costs. Absorption costing is when you need to fix the excess spending.

A material said to be absorbent indicates its ability to carry a certain amount of liquid in its interstice, or little chamber like in a sponge. In the case of a textile fabric, the yarn itself can act like a mini sponge. Also the space between the yarns can be sufficiently tight to trap water and immobilize it due to the surface tension of the water. Yarns of fabric can be made to create additional "traps" for water by brushing.Now, what about adsorption, with a "d"? The word adsorption was introduced to illustrate the concept of ''chemical absorption'' which occurs when a substance is caught either in nanopores or to the surface of a substrate by low energy (Van der Waal Forces). This is the principle used for activated carbon filter where billions of tiny pores will clean contaminants from a passing fluid. These contaminants can be extracted fairly easily by a steam process. The more one tries to explain the difference between absorption and adsorption, the more it appears that both concepts are in fact very similar. The main difference is that adsorption refers to trapping substances on a nanometric scale (1X10-9).check this site for more:

Adsorption chromatography (AC) is chromatographic separation due to energetic interactions between the solute and the surface of the porous packings.

Digestion is nothing but conversion of complicated molecules into simple molecules for the use of animal's where as absorption is already digested and can be directly used.

Absorption is where nutrients are moved from the lumen in to the bloodstream or the lymph. here they are transported to tissues where they are assimilated :used for energy, growth etc

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