## zero order in rate laws

$aR \to bP, Rate = -\frac{1}{a} \frac{d[R]}{dt} = \frac{1}{b}\frac{d[P]}{dt}$

Gabriela Carrillo 1B
Posts: 53
Joined: Fri Sep 29, 2017 7:04 am

### zero order in rate laws

If a reactant is zero order do we include it in the rate law or write it without it? For example: rate=k[A][B]^2[C]^0 or rate=k[A][B]^2?

Nora 1F
Posts: 46
Joined: Fri Sep 29, 2017 7:04 am

### Re: zero order in rate laws

If a reactant is zero order, you do not include it in the rate law because it won't affect the rate of the reaction.

Vincent Kim 2I
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### Re: zero order in rate laws

Unless the problem wants you to write it out specifically, probably not

604807557
Posts: 51
Joined: Wed Nov 16, 2016 3:02 am

### Re: zero order in rate laws

You write it without it since it has no affect

Jimmy Zhang Dis 1K
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Joined: Fri Sep 29, 2017 7:05 am

### Re: zero order in rate laws

No, the zero order reaction has no effect on the rate law so normally its not included.

Virpal Gill 1B
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Joined: Thu Jul 27, 2017 3:00 am

### Re: zero order in rate laws

If it is zero order the rate law is not dependent on the concentration of that reactant so it technically doesn't need to be included.

AtreyiMitra2L
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### Re: zero order in rate laws

We can include them but its . not needed.

Merzia Subhan 1L
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Joined: Thu Jul 13, 2017 3:00 am

### Re: zero order in rate laws

Since it ends up being 1, I wouldn't include it. It makes the equation look cluttered

Patricia Macalalag 2E
Posts: 53
Joined: Sat Jul 22, 2017 3:00 am

### Re: zero order in rate laws

You can leave it out because it has no effect on the rate.