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if the concentration of a substance at the surface of another substance is more than in the bulk of the adjoining phases, it is called positive surface.

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Q: What is positive adsorption?
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Related questions

Does chemical adsorption have a high adsorption enthalpy?

no


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.


Is the adsorption capacity depend upon porosity of adsorbent?

Yes, the adsorption capacity of an adsorbent is influenced by its porosity. A higher porosity provides more surface area for adsorption to occur, resulting in a greater adsorption capacity. Therefore, materials with higher porosity generally exhibit higher adsorption capabilities.


Why physical adsorption is reversible process?

Physical adsorption is reversible because the forces involved are weak van der Waals forces, such as London dispersion forces or dipole-dipole interactions. These forces can be easily disrupted by changes in temperature or pressure, allowing the adsorbate to be released from the adsorbent surface. This reversibility distinguishes physical adsorption from chemical adsorption, which involves stronger, more covalent bonds.


What has the author Lawrence T Drzal written?

Lawrence T. Drzal has written: 'Adsorbate-adsorbent interactions by gas adsorption' -- subject(s): Absortion and adsorption, Gases, Adsorption


What is adsorption site?

An adsorption site is a location on a surface where molecules or particles can adhere or bind due to attractive forces. It is where adsorption occurs, where a substance accumulates on the surface of another material. Adsorption sites are important in processes like catalysis, gas separation, and water treatment.


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.


What has the author Douglas M Ruthven written?

Douglas M. Ruthven has written: 'Pressure swing adsorption' -- subject(s): Adsorption


What has the author Roberto Triolo written?

Roberto Triolo has written: 'Adsorption on mixtures of ion exchanges' -- subject(s): Ion exchange, Adsorption


What has the author Matthew H Lang written?

Matthew H Lang has written: 'Polyelectrolyte adsorption kinetics' -- subject(s): Polyelectrolytes, Adsorption


Is adsorption a chemical process in which one substance is taken up by another?

Yes, adsorption is a process in which one substance (the adsorbate) is attracted and binds to the surface of another material (the adsorbent) through physical or chemical interactions. This results in a concentration of the adsorbate at the surface of the adsorbent.


What is other word for Adsorption?

Migration or segregation.