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Adsorption v. Absorption

Posted: Fri Mar 13, 2020 10:30 am
by Suraj Doshi 2G
Can someone explain the difference between adsorption and absorption as it relates to catalysis?

Re: Adsorption v. Absorption

Posted: Fri Mar 13, 2020 10:34 am
by Asha Agarwal 1E
Absorption is when something takes in something else like a sponge absorbing water. Adsorption on the other hand is when a reactant sits on the surface of a catalyst.

Re: Adsorption v. Absorption

Posted: Fri Mar 13, 2020 10:51 am
by Matt F
^To add onto this, adsorption occurs with a heterogeneous catalyst where the catalyst is in a different phase as the reactants (usually solids), causing them to sit on the surface

Re: Adsorption v. Absorption

Posted: Fri Mar 13, 2020 10:52 am
by 805307623
At active sites, 1+ reactants are adsorbed on to the surface of the catalyst. Adsorption is where something sticks to a surface. Absorption is where one substance is taken up within the structure of another.