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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.
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What is difference between ion exchange and adsorption?
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.
Factors influencing on sorption?
The following factors influences the sorption- 1- temperature of both gas and adsorbent. 2- the chemical nature of gas and adsorbent. 3- the microscopic roughness of the surfaceof adsorbent. 4- the incident flux of molecules. 5-surface to volume ratio of the adsorbent.
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What is difference between ion exchange and adsorption?
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.
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This information can often be obtained from the shape of the vapor sorption isotherm.
Factors influencing on sorption?
The following factors influences the sorption- 1- temperature of both gas and adsorbent. 2- the chemical nature of gas and adsorbent. 3- the microscopic roughness of the surfaceof adsorbent. 4- the incident flux of molecules. 5-surface to volume ratio of the adsorbent.
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