## Slow step

kevinolvera1j
Posts: 103
Joined: Fri Aug 02, 2019 12:15 am

### Slow step

How slow does the slowest step need to be in order to be considered the slowest step? In other words is there a real time value?

Deepika Reddy 1A
Posts: 125
Joined: Thu Jul 11, 2019 12:15 am

### Re: Slow step

There's not a certain time that is considered the slowest step. It is just that it is slow relative to the other steps in the mechanism. It needs to be the slowest out of all the steps in the mechanism and then it can be called the slowest step or the rate-determining step.

rabiasumar2E
Posts: 108
Joined: Thu Jul 11, 2019 12:15 am

### Re: Slow step

There isn't a numerical value that you would use to deduce if it's a slow step or not. It would just be the slowest step out of all of the steps.

Diana A 2L
Posts: 106
Joined: Sat Aug 17, 2019 12:16 am
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### Re: Slow step

^^^ Yes. “Slowness” is relative to the reaction mechanism.

Abby Soriano 1J
Posts: 103
Joined: Sat Aug 24, 2019 12:16 am

### Re: Slow step

The problem will most likely specify which of the steps is the slow step. You will probably be asked if a proposed mechanism matches the observed rate law, but you won't need to actually calculate a value for the slow step.

Posts: 107
Joined: Sat Aug 17, 2019 12:16 am
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### Re: Slow step

Abby Soriano 1J wrote:The problem will most likely specify which of the steps is the slow step. You will probably be asked if a proposed mechanism matches the observed rate law, but you won't need to actually calculate a value for the slow step.

If the rate matches the observed rate law is that the slowest step?

Diana A 2L
Posts: 106
Joined: Sat Aug 17, 2019 12:16 am
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### Re: Slow step

Kayla Maldonado 1C wrote:
Abby Soriano 1J wrote:The problem will most likely specify which of the steps is the slow step. You will probably be asked if a proposed mechanism matches the observed rate law, but you won't need to actually calculate a value for the slow step.

If the rate matches the observed rate law is that the slowest step?

Yes.

Jared_Yuge
Posts: 100
Joined: Sat Aug 17, 2019 12:17 am

### Re: Slow step

If the observed rate law is given then you dont need to worry about identifying the slow step because it will just be the one that matches the given observed rate law

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