catalyst
Moderators: Chem_Mod, Chem_Admin
-
- Posts: 103
- Joined: Fri Aug 02, 2019 12:15 am
-
- Posts: 108
- Joined: Fri Aug 09, 2019 12:16 am
- Been upvoted: 1 time
Re: catalyst
No, not all zero order reactions is dependent on a catalyst. A zero order reaction could also occur with an enzyme or a surface. It's just that most commonly you would find a catalyst with a zero order reaction.
-
- Posts: 103
- Joined: Fri Aug 02, 2019 12:15 am
Re: catalyst
Selena Yu 1H wrote:No, not all zero order reactions is dependent on a catalyst. A zero order reaction could also occur with an enzyme or a surface. It's just that most commonly you would find a catalyst with a zero order reaction.
Aren't enzymes just biological catalysts?
-
- Posts: 106
- Joined: Sat Aug 17, 2019 12:16 am
- Been upvoted: 1 time
Re: catalyst
kevinolvera1j wrote:Selena Yu 1H wrote:No, not all zero order reactions is dependent on a catalyst. A zero order reaction could also occur with an enzyme or a surface. It's just that most commonly you would find a catalyst with a zero order reaction.
Aren't enzymes just biological catalysts?
AHHH yes they are! Let me provide a better answer.
A zero-order reaction is when rate is just k right, so it doesn’t depend on the concentrations of the reactants.
And a catalyst is not present in the overall chemical reaction, but they’re just there as a pathway of lower activation energy.
Rather, zero-order reactions usually DESCRIBE catalysts, because regardless of how much the concentration of the reactant changes, the rate will be determined by k, or specifically, how much the catalyst can handle basically.
-
- Posts: 106
- Joined: Sat Aug 17, 2019 12:16 am
- Been upvoted: 1 time
Re: catalyst
Here’s a link to offer a more detailed explanation!
https://chem.libretexts.org/Core/Physic ... _Reactions
https://chem.libretexts.org/Core/Physic ... _Reactions
-
- Posts: 107
- Joined: Sat Aug 17, 2019 12:16 am
- Been upvoted: 1 time
Re: catalyst
A zero order reaction can simply be when a material such as the surface or catalyst are saturated by the reactants so no a catalyst isn't necessary to make a reaction zero order. In this type of reaction, the limiting factor is something besides concentration which can possibly be a catalyst, but this is not always the case.
Return to “Zero Order Reactions”
Who is online
Users browsing this forum: No registered users and 1 guest