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K constant Units

Hi,

I was wondering if someone can just check that i have worked out the units correctly for the below equation.

K = Rate / [A]^m ⁿ

For my reaction the rate was = 0.022 (s^-1)

And the concentrations below were both first order, in terms of units this should be:

s^-1 / (moldm^-3) (moldm^-3)

I worked out the units as Mol^-1dm⁶s^-1 . Does that seem right to you? Many thanks!

Reply 1

JacobAlevels

Shouldn't it be

Unparseable latex formula:

s^{-1}mol^{-2}dm^{6}}

Reply 2

Asklepios

[QUOTE="7jdrabble;47254354"]Hi,

I was wondering if someone can just check that i have worked out the units correctly for the below equation.

K = Rate / [A]^m ⁿ

For my reaction the rate was = 0.022 (s^-1)

And the concentrations below were both first order, in terms of units this should be:

s^-1 / (moldm^-3) (moldm^-3)

I worked out the units as Mol^-1dm⁶s^-1 . Does that seem right to you? Many thanks!

~~It would be mol^-2 dm⁶ s^-1~~

EDIT: It would actually be mol^-1 dm³ s^-1, as the units for rate are mol dm^-3s^-1, and not just s-1.

(edited 10 years ago)

Reply 3

7jdrabble

Yes it should be! Many thanks for your help, a silly mistake on my part!