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What is desorption means?
Desorption is the process of releasing or removing molecules from a surface or material. It is the opposite of adsorption, where molecules adhere to a surface. Desorption can occur through various methods such as heating, flushing with a gas, or changing the pressure conditions.
What has the author D E Robertson written?
D. E. Robertson has written: 'Adsorption and desorption behavior of selected 10 CFR Part 61 radionuclides from ion exchange resin by waters of different chemical composition' -- subject(s): Absorption and adsorption, Radioisotopes, Ion exchange resins
What is the meanning of adsorption?
Adsorption is a process that occurs when a gas or liquid solute accumulates on the surface of a solid or a liquid (adsorbent), forming a molecular or atomic film (the adsorbate). It is different from absorption, in which a substance diffuses into a liquid or solid to form a solution. The term sorption encompasses both processes, while desorption is the reverse process.
Why physical adsorption is reversible process?
adsorption is processs of accumulation of liquid/gases on solid surface. reversible adsorption is seen in physical adsorption where increase in pressure increases the adsorption and decrease in pressure decrease adsorption of molecules to surface that is desorption takes place
What has the author Ajay B Pasari written?
Ajay B. Pasari has written: 'The role of adsorption/desorption in catalytic methanation of carbon monoxide' -- subject(s): Methanation, Carbon monoxide
Does physical adsorption have a low adsorption enthalpy?
Yes, physical adsorption typically has a low adsorption enthalpy due to weak van der Waals forces between the adsorbate and adsorbent. These interactions are reversible and non-specific, leading to lower enthalpies compared to chemical adsorption.
What has the author Donald R Wheeler written?
Donald R. Wheeler has written: 'Thermal desorption study of physical forces at the PTFE surface' -- subject(s): Polytef, Irradiation, Thermal desorption, Adhesion, Polytetrafluoroethylene, Desorption
What is surface complexation?
Surface complexation is a phenomenon where ions or molecules in a solution interact with the surface of a solid material, forming a layer of complex molecules on the surface. This process can influence adsorption, desorption, and other surface properties of the material. Surface complexation is commonly used to describe reactions that occur at the interface between solids and liquids.
How does adsorption work in reality?
In reality, adsorption is a process where molecules in a gas or liquid adhere to the surface of a solid. This occurs due to the attractive forces between the molecules and the solid surface. Adsorption is used in various applications such as purifying gases, wastewater treatment, and catalysts.
Does pressure effect on adsorption of oxygen?
Yes. Pressue effects both adsorption and absorption of oxygen. I assume you really did mean adsorption (and not absorption) but just in case, this answer addresses both - since the answer is similar. As pressure increases, the fugacity of oxygen in the liquid or vapor phase will also increase. In order to stay in equilibrium, you would expect the concentration of oxygen on a surface (adsorption) to increase as well. There is one caveat in that if the oxygen is in a mixture, the fugacity of the other components of the mixture will also be increasing and may be in competition with the oxygen for adsorption to the surface. Once the surface is saturated, raising the pressure may not have any effect on the adsorption. Likewise, dropping the pressure will decrease the fugacity of oxygen in the fluid phase and promote desorption from a surface (the reverse of adsorption). Similarly, increasing or decreasing pressure will increase and decrease the fugacity of oxygen in the vapor phase and require more or less oxygen to be absorbed into a liquid (or in some cases solids - although most solids don't dissolve gasses very well). Increaing pressure can also change the distribution of oxygen between two immiscible liquids as the fugacity of the oxygen in each depends on both pressure and the effect of pressure on the fugacity of the solvent liquids.
Does chemical adsorption have a high adsorption enthalpy?
no
What is a AARL strip circuit?
An AARL (Anglo American Research Laboratories) strip circuit is a method used in gold processing to extract gold from a solution. The circuit involves a series of process steps including adsorption, desorption, and electrowinning to separate gold from other metals.
