## Adsorption v. Absorption

$K = \frac{k_{forward}}{k_{reverse}}$

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Suraj Doshi 2G
Posts: 100
Joined: Fri Aug 02, 2019 12:15 am

### Adsorption v. Absorption

Can someone explain the difference between adsorption and absorption as it relates to catalysis?

Asha Agarwal 1E
Posts: 51
Joined: Fri Aug 30, 2019 12:16 am

### Re: Adsorption v. Absorption

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.

Matt F
Posts: 100
Joined: Sat Aug 17, 2019 12:17 am

### Re: Adsorption v. Absorption

^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

805307623
Posts: 99
Joined: Fri Aug 09, 2019 12:17 am

### Re: Adsorption v. Absorption

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.

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