Rate law

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Markus Min 2I
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Joined: Fri Sep 25, 2015 3:00 am

Rate law

Postby Markus Min 2I » Wed Feb 17, 2016 7:45 pm

When using the rate law, are the exponents of the different reactants always equal to the stoichiometric coefficients of these reactants?

i.e. for 2A -> B, will n in rate = k[A]^n always be 2?

Posts: 22
Joined: Fri Sep 25, 2015 3:00 am

Re: Rate law

Postby LinaLi2E » Wed Feb 17, 2016 8:27 pm

No, the exponent--order--does not always equal the stoichoimetric coefficient. For 2A->B, the rate=k[A]^n where n=2 because rate=k[A][A]. It is not because there are two moles of A but because there are two reactants that happen to be the same.

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