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Update file README.org

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Marco De Lucia 2023-08-26 12:32:47 +02:00
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@ -24,15 +24,13 @@ celestite; following diffusion of $BaCl_2$ celestite dissolution
occurs Dissolution of celestite and the successive release of occurs Dissolution of celestite and the successive release of
$SO_4^{2-}$ into solution causes barite to precipitate: $SO_4^{2-}$ into solution causes barite to precipitate:
#+begin_src tex ```\mathrm{Ba}^{2+}_{\mathrm{(aq)}} + \mathrm{SrSO}_{4, \mathrm{(s)}} \rightarrow \mathrm{BaSO}_{4,\mathrm{(s)}} + \mathrm{Sr}^{2+}_{\mathrm{(s)}}```
$ \mathrm{Ba}^{2+}_{\mathrm{(aq)}} + \mathrm{SrSO}_{4, \mathrm{(s)}} \rightarrow \mathrm{BaSO}_{4,\mathrm{(s)}} + \mathrm{Sr}^{2+}_{\mathrm{(s)}} $
#+end_src
Reaction rates are calculated using a general kinetics rate law for Reaction rates are calculated using a general kinetics rate law for
both dissolution and precipitation based on transition state both dissolution and precipitation based on transition state
theory: theory:
$ \frac{\mathrm{d}m_{m}}{\mathrm{d}t} = -\mathrm{SA}_m k_{\mathrm{r},m} (1-\mathrm{SR}_{m})$ ```\frac{\mathrm{d}m_{m}}{\mathrm{d}t} = -\mathrm{SA}_m k_{\mathrm{r},m} (1-\mathrm{SR}_{m})```
where $\mathrm{d}m\,(\mathrm{mol/s})$ is the rate of a mineral phase where $\mathrm{d}m\,(\mathrm{mol/s})$ is the rate of a mineral phase