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Kinetics


HydrothermalDude
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Hello again,

 

So I was putting dissolution rate parameters into a kinetic mineral in the reactants tab. When I would input the dissolution rate law, I had a species (SiO2(aq)) which is part of the function and is raised to a particular power. When putting the power dependency into the kinetics the stoichiometry of the rate constant changes from mol/(cm2*s) to mol.75kg.25/(cm2*s) for example. What does this imply?

 

Thanks,

 

Drew

 

Here is the attached gwb script:

 

The database is for 500 bars and at 300C....so don't necessarily try to run it

Olv-Talc(Kinetic).rea

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What does this imply?

 

Hi Drew:

 

I'm not sure I understand the question. Units on the rate constant must change depending on how the rate law is posed. Note for instance when you add inhibiting/promoting species that rate constant units change depending on whether or not you cast the species as concentrations or activities.

 

Regards,

 

Tom Meuzelaar

RockWare, Inc.

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