foramruber
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Posts posted by foramruber
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I don't have my old computer with me right now. I think it says something like too many returns. I did once switch computer a few months ago and that time I was able to deactivate successfully. I wonder if there is a limit of how many times you can reinstall on a new computer.
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Hi all,
I'm migrating to a new computer and reinstalling my student version GWB. I tried to deactive it on the old computer, but it keeps making error messages. Is there a way to solve the problem?
Thermodynamic database
in The Geochemist's Workbench Community
Posted
Hi, what information is used to compute the equilibrium constants at temperature other than 25 in the default thermo.dat file? I was looking for enthalpy data of a few aqueous complexes to do temperature correction for their formation constants, however, I couldn't find them in literature at all. I also checked all the other popular databases, including LLNL, PHREEQC, WATEQ4F,MINTEQ, and yet none of them include enthalpy data of these reactions (nor any other temperature dependent relationships). In contrast, thermo.dat actually includes temperature dependent equilibrium constants for all these reactions. How are they derived? And how reliable are they if "real" enthalpy data do not exist? (I'm pretty sure I have conducted a very thorough literature search). Thanks!