Diffusion potential
Input(s)
\(t_{C l}\): Chlorine Anion Transference Number (dimensionless)
R: Gas Constant \((8.31)(\mathrm{J} / \mathrm{mol} \mathrm{K})\)
\(\boldsymbol{T}_{\boldsymbol{a}}\): Absolute Temperature (degree K)
F: Faraday Constant (96516) (C)
\(a_{1}\): Activities of 1st Electrolyte (dimensionless)
\(\boldsymbol{a}_{\mathbf{2}}\): Activities of 2nd Electrolyte (dimensionless)
Output(s)
\(\boldsymbol{E}_{\boldsymbol{d}}\): Diffusion Potential (V)
Formula(s)
\[
\mathrm{E}_{\mathrm{d}}=\left(2 * \mathrm{t}_{\mathrm{Cl}}-1\right) *\left(\mathrm{R} * \frac{\mathrm{T}_{\mathrm{a}}}{\mathrm{F}}\right) * \ln \left(\frac{\mathrm{a}_{1}}{\mathrm{a}_{2}}\right)
\]
Reference(s)
Bassiouni, Z., 1994, Theory, Measurement, and Interpretation of Well Logs. SPE Textbook Series Vol. 4. Chapter 6, Page: 130 .