Ask Question
6 November, 05:07

For a reaction in a voltaic cell, both ΔH° and ΔS° are positive. Given the following equations for standard free energy, ΔG° = ΔH° - TΔS°; ΔG° = - nFE°. How does the standard cell potential change with increasing temperature? Derive the equation that shows how the standard cell potential change with temperature

+2
Answers (1)
  1. 6 November, 08:35
    0
    The standard cell potential increases with increasing temperature.

    Explanation:

    Equatio 1: ΔG° = ΔH° - TΔS°

    Equation 2: ΔG° = - nFE°

    Isolating E° in equation 2:

    E° = - ΔG° / nF (Equation 3)

    Substituting equation 1 in equation 3:

    E° = ( - ΔH° + TΔS°) / nf

    We can rearrange the equation:

    E° = (ΔS°/nF) T + (ΔH°/nF)

    Now it is clear that the higher the temperature, the higher the standard cell potential.
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “For a reaction in a voltaic cell, both ΔH° and ΔS° are positive. Given the following equations for standard free energy, ΔG° = ΔH° - TΔS°; ...” in 📙 Chemistry if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers