## does the order determine molecularity?

$\frac{d[R]}{dt}=-k[R]^{2}; \frac{1}{[R]}=kt + \frac{1}{[R]_{0}}; t_{\frac{1}{2}}=\frac{1}{k[R]_{0}}$

Josephine Lu 4L
Posts: 62
Joined: Fri Sep 28, 2018 12:18 am

### does the order determine molecularity?

is the overall order of a reaction the same as its molecularity?

Iona Pay
Posts: 43
Joined: Fri Sep 28, 2018 12:15 am

### Re: does the order determine molecularity?

Molecularity refers to the number of molecules that come together to react in an elementary reaction, and is equal to the sum of the coefficients of this elementary reaction. So, if you're talking about an elementary reaction, yes!

Lydia Luong 4L
Posts: 59
Joined: Fri Sep 28, 2018 12:24 am

### Re: does the order determine molecularity?

Yes

205154661_Dis2J
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Joined: Wed Sep 18, 2019 12:21 am

### Re: does the order determine molecularity?

Yes it does!

Cavalli_1H
Posts: 92
Joined: Thu Sep 19, 2019 12:15 am

### Re: does the order determine molecularity?

Iona Pay wrote:Molecularity refers to the number of molecules that come together to react in an elementary reaction, and is equal to the sum of the coefficients of this elementary reaction. So, if you're talking about an elementary reaction, yes!
might seem silly but what do you mean by elementary reaction?

005162520
Posts: 101
Joined: Tue Sep 24, 2019 12:17 am

### Re: does the order determine molecularity?

An elementary reaction is a chemical reaction in which one or more chemical species react directly to form products in a single reaction step and with a single transition state.

Lindsey Chheng 1E
Posts: 110
Joined: Fri Aug 30, 2019 12:16 am

### Re: does the order determine molecularity?

Cavalli_1H wrote:
Iona Pay wrote:Molecularity refers to the number of molecules that come together to react in an elementary reaction, and is equal to the sum of the coefficients of this elementary reaction. So, if you're talking about an elementary reaction, yes!
might seem silly but what do you mean by elementary reaction?

An elementary reaction (or process): defined as a single step in a reaction

Ayushi2011
Posts: 101
Joined: Wed Feb 27, 2019 12:17 am

Yes.