Zero Order reaction rate constant


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Riya Sood 4G
Posts: 160
Joined: Sat Aug 24, 2019 12:18 am

Zero Order reaction rate constant

Postby Riya Sood 4G » Sun Mar 08, 2020 3:46 pm

If the reaction is 2A--> Products and is zero order, is the rate constant still K or 2K ?

DarrenKim_1H
Posts: 123
Joined: Fri Sep 20, 2019 12:17 am
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Re: Zero Order reaction rate constant

Postby DarrenKim_1H » Sun Mar 08, 2020 4:03 pm

I believe it is still K

Mulin_Li_2J
Posts: 105
Joined: Sat Aug 17, 2019 12:16 am

Re: Zero Order reaction rate constant

Postby Mulin_Li_2J » Sun Mar 08, 2020 4:15 pm

Yes, I believe if you represent rate of the reaction using rate law, it should still be k no matter what stochiometric coefficient is in front of the reactant.

Suraj Doshi 2G
Posts: 100
Joined: Fri Aug 02, 2019 12:15 am

Re: Zero Order reaction rate constant

Postby Suraj Doshi 2G » Sun Mar 08, 2020 4:33 pm

The rate constant should still be K as none of the stoichiometric coefficients and concentrations will affect the rate of reaction.

Leila_4G
Posts: 114
Joined: Sat Sep 14, 2019 12:17 am

Re: Zero Order reaction rate constant

Postby Leila_4G » Sun Mar 08, 2020 5:12 pm

And what is the units for the rate constant of the zero order rxn?

Riya Sood 4G
Posts: 160
Joined: Sat Aug 24, 2019 12:18 am

Re: Zero Order reaction rate constant

Postby Riya Sood 4G » Sun Mar 08, 2020 5:15 pm

Leila_4G wrote:And what is the units for the rate constant of the zero order rxn?



The units for rate constant for a zero order reaction is mol L^-1 s^-1

Ritu Gaikwad 2E
Posts: 52
Joined: Thu Jul 11, 2019 12:16 am

Re: Zero Order reaction rate constant

Postby Ritu Gaikwad 2E » Sun Mar 08, 2020 5:41 pm

The rate constant, regardless of the order of the reaction will not be dependent on the coefficients of the reaction.

preyasikumar_2L
Posts: 101
Joined: Fri Aug 09, 2019 12:17 am

Re: Zero Order reaction rate constant

Postby preyasikumar_2L » Sun Mar 08, 2020 6:31 pm

The coefficients do not affect the rate constant, it will still be K.

smurphy1D
Posts: 51
Joined: Mon Nov 18, 2019 12:18 am

Re: Zero Order reaction rate constant

Postby smurphy1D » Mon Mar 09, 2020 10:41 am

if it is zero order then it is constant because anything to the 0 power is just 1


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