Intermediate Species

Arrhenius Equation:

Moderators: Chem_Mod, Chem_Admin

Noe BM 1J
Posts: 50
Joined: Sat Sep 07, 2019 12:17 am

Intermediate Species

Postby Noe BM 1J » Sun Mar 08, 2020 8:48 pm

Could anyone please explain what exactly is an intermediate species?

Jessica Castellanos
Posts: 102
Joined: Sat Aug 24, 2019 12:17 am
Been upvoted: 1 time

Re: Intermediate Species

Postby Jessica Castellanos » Sun Mar 08, 2020 8:53 pm

The easiest way I can explain this is by an example:
Let's say,
A + B → X
and X → C + D

Then, for the reaction A + B → C + D, X is the intermediate species because although it cancels out and isn't present in the overall reaction, it was still a species in the process.

Renee Grange 1I
Posts: 56
Joined: Fri Aug 30, 2019 12:16 am
Been upvoted: 1 time

Re: Intermediate Species

Postby Renee Grange 1I » Sun Mar 08, 2020 8:54 pm

Additionally, I believe reactions have the same intermediate species whether they are going in the reverse or forward direction.

Andres Merlos 2L
Posts: 46
Joined: Wed Sep 18, 2019 12:17 am

Re: Intermediate Species

Postby Andres Merlos 2L » Sun Mar 08, 2020 8:56 pm

An intermediate species is not part of the overall reaction equation, but it does play a role in the mechanisms of it. It is formed and consumed in the middle of the reaction.

Hui Qiao Wu 1I
Posts: 56
Joined: Fri Aug 30, 2019 12:16 am

Re: Intermediate Species

Postby Hui Qiao Wu 1I » Sun Mar 08, 2020 10:17 pm

It is a specie that first gets produced and then later used as a reactant.

Cole Woulbroun 1J
Posts: 56
Joined: Thu Jul 25, 2019 12:16 am

Re: Intermediate Species

Postby Cole Woulbroun 1J » Sun Mar 08, 2020 10:20 pm

Many reactions are thought to occur in steps, as they make the formation of particular products from particular products more plausible. An intermediate is a molecule, atom, or ion that is produced in one of these stepwise reactions and consumed in another one of these stepwise reactions.

Niharika 1H
Posts: 50
Joined: Thu Jul 25, 2019 12:16 am

Re: Intermediate Species

Postby Niharika 1H » Sun Mar 08, 2020 10:23 pm

An intermediate species is a species that plays a role in a reaction but does not appear in chemical equations for the overall reaction.

rohun2H
Posts: 100
Joined: Wed Sep 18, 2019 12:19 am

Re: Intermediate Species

Postby rohun2H » Sun Mar 08, 2020 11:30 pm

An intermediate species is one that is present in the mechanism but not in the reactants nor the products of the overall reaction.

505306205
Posts: 97
Joined: Thu Jul 25, 2019 12:15 am

Re: Intermediate Species

Postby 505306205 » Sun Mar 08, 2020 11:33 pm

An intermediate species is a species that is formed in the middle of the reaction but does not appear in the overall reaction equation or overall reaction rate equation.

CameronDis2K
Posts: 51
Joined: Wed Feb 20, 2019 12:18 am

Re: Intermediate Species

Postby CameronDis2K » Mon Mar 09, 2020 3:02 pm

It is usually an element or compound in a series of reactions that cancels out as is not present in the overall final equation (it is consumed in the process):
A + B --> C
B + C --> E
2B + A --> E, here the intermediate is C.


Return to “Arrhenius Equation, Activation Energies, Catalysts”

Who is online

Users browsing this forum: No registered users and 0 guests