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I don't understand constants

by sodium.dioxid
Tags: constants
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sodium.dioxid
#1
May7-12, 08:53 PM
P: 51
What exactly are constants? Are they just used to make the equation work or is there something more meaningful than this? Right now I am studying rate of reactions and they go something like this:

rate = k [A]^x [B]^y

It seems like k is only there to make the equation work. It would seem like k is the responsiveness of rate to concentration. But this becomes meaningless when comparing two reaction of different orders; they take on different units for different orders.
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Drakkith
#2
May7-12, 09:14 PM
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Have you read this article? http://en.wikipedia.org/wiki/Physical_constant


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