## Question 15.47

$K = \frac{k_{forward}}{k_{reverse}}$

Gavin Kellerman 1D
Posts: 17
Joined: Sat Jul 09, 2016 3:00 am

### Question 15.47

In this question why is it that chlorine is an intermediate when it's produced as an atom in reaction 1 but reacts as an ion in reaction 2?

DianaTrujillo2K
Posts: 40
Joined: Fri Sep 29, 2017 7:04 am

### Re: Question 15.47

Chlorine is an intermediate because it is produced in step 1, but it is used as a reactant in step 2; therefore, they cancel out, and the overall reaction does not include it.

allyz1F
Posts: 58
Joined: Sat Jul 22, 2017 3:00 am

### Re: Question 15.47

I see what you're saying here, and I originally included them in the overall reaction as well because an atom and an ion of the same element can behave very differently. Maybe they forgot the - for the reactant side Cl?

Oscar Valdovinos 1I
Posts: 29
Joined: Fri Sep 29, 2017 7:05 am

### Re: Question 15.47

Another perspective to take on intermediates, is that are not present in the reactants of the first step and the products of the last step. Therefore Intermediates are produced by an elementary reaction but consumed in another one.

Gurkriti Ahluwalia 1K
Posts: 37
Joined: Fri Sep 29, 2017 7:07 am

### Re: Question 15.47

intermediates get immediately used up, so in a sense its like they're not even there in the first place. their existence is temporary.

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