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Posted: Tue Mar 10, 2020 9:24 am
Does adsorbtion only occur for heterogeneous catalysts?
Posted: Tue Mar 10, 2020 9:45 am
I believe so, as adsorption refers to the physical contact of reactants with the surface of a catalyst in a different state. If the catalyst were homogeneous I believe that we wouldn't consider the contact to be adsorption since there is no such contact between substances of different physical states.
Posted: Tue Mar 10, 2020 9:58 am
To add on, adsorption is defined as reactants on the surface of the catalyst. For this to occur, I believe it is implied that the catalyst will have to be solid, so that there can be a surface for the reactants to rest on and react with. If it were a homogenous catalyst, the complex would likely form in a solution.
Hope this helped!
Posted: Tue Mar 10, 2020 10:11 am
Yes, I believe so. Adsorption is when reactants sit on the surface of a catalyst versus absorption, where you can think of water soaking into a sponge (reactant breaching surface of the catalyst).
Posted: Tue Mar 10, 2020 10:47 am
yes, because homogenous catalysts would absorb being in the same state of matter. the example used in class was that the catalytic converter was solid while gas sits on top of it rather than being absorbed. it's adsorbed. hope this helps