Units


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Erik Buetow 1F
Posts: 96
Joined: Fri Aug 30, 2019 12:15 am

Units

Postby Erik Buetow 1F » Sat Mar 14, 2020 8:10 pm

Will units for k values given a trial chart always be M^-2.s^-1? Or will this unit change based on the reaction order?

Ariana Iranmahboub1G
Posts: 114
Joined: Fri Aug 09, 2019 12:17 am

Re: Units

Postby Ariana Iranmahboub1G » Sat Mar 14, 2020 8:13 pm

It would depend on the reaction order. For instance, if it is zero order the unit is mol*L^-1*s^-1. For the first order, it is s^-1. And for the second order, it is L*mol^-1*s^-1

JamieVu_2C
Posts: 108
Joined: Thu Jul 25, 2019 12:16 am

Re: Units

Postby JamieVu_2C » Sat Mar 14, 2020 8:15 pm

The units for k will depend on the overall order of the reaction. k has the units of L^2 * mol^-2 * s^-1 when the overall order is 3.

Julie Park 1G
Posts: 100
Joined: Thu Jul 25, 2019 12:15 am

Re: Units

Postby Julie Park 1G » Sat Mar 14, 2020 8:19 pm

You can use example 7A.7 from the book to see exactly the units for k change based on the reaction order! A easy way to find out the units is to use where M = mol/L and n is the reaction order


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