## Heterogeneous catalyst

$V_{0} = \frac{V_{max}[S]}{K_{M} + [S]}; K_{M} = \frac{[E][S]}{[ES]}$

smurphy1D
Posts: 51
Joined: Mon Nov 18, 2019 12:18 am

### Heterogeneous catalyst

If the catalyst is a solid, in lecture it was said that the reactants sit on top and are adsorbed, does this mean the solution is literally a liquid on top of the solid or are they just in a container with each other?

jisulee1C
Posts: 149
Joined: Thu Jul 25, 2019 12:17 am

### Re: Heterogeneous catalyst

adsorption refers to the physical contact of reactants with the surface of a catalyst in a different state
and it is when reactants sit on the surface of a catalyst versus absorption which is when the reactant breaches the surface of the catalyst
therefore I would interpret it as being a liquid on top of a solid

Lauren Stack 1C
Posts: 100
Joined: Sat Aug 17, 2019 12:18 am

### Re: Heterogeneous catalyst

Absorption is different from adsorption. In adsorption, the reactants sit on the surface of the catalyst. So thus, I'd believe you'd visualize it as liquid reactants in a pool on top of a solid or gas surrounding the surface of the solid.

Natalie Benitez 1E
Posts: 100
Joined: Fri Aug 02, 2019 12:15 am

### Re: Heterogeneous catalyst

What does an heterogeneous catalyst mean?