For an electrochemical cell operating spontaneously, ΔG° is related to…

Question

For an electrochemical cell operating spontaneously, ΔG° is related to E°_cell by

Accepted Answer

C. {'text': 'ΔG° = −nFE°_cell', 'label': 'C'}

1. Standard cell thermodynamics: ΔG° = −nFE°_cell.
2. Positive E°_cell → negative ΔG° → spontaneous.
3. n is moles of electrons transferred; F is Faraday constant.
4. At non-standard conditions, ΔG = ΔG° + RT ln Q or equivalently ΔG = −nFE_cell.
_Source: NCERT Class 12 Chemistry, Unit 3 "Electrochemistry", §3.3_

Answer

{'text': 'ΔG° = +nFE°_cell', 'label': 'A'}

Answer

{'text': 'ΔG° = nF / E°_cell', 'label': 'B'}

Answer

{'text': 'ΔG° = E°_cell / (nF)', 'label': 'D'}