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 .