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Inputs required to calculate pe


cjacks02
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Hi Chris,

 

You need to constrain the oxidation state of your system in order to calculate a pe value. In GSS, you would need to set the O2(aq) concentration (either the total component, or commonly for DO measurements the free species concentration). Or you can add Eh as a System parameter and use that to calculate pe.

 

In SpecE8, React, X1t, or X2t you have a little more flexibility to constrain the oxidation state. You can set an Eh or O2(aq) concentration like in GSS, or you can swap in a gas, mineral, or species activity ratio to constrain the oxidation state.

 

Hope this helps,

 

Brian Farrell

Aqueous Solutions LLC

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