The Nernst equation for a cell reaction at 298 K is E_cell = E°_cell −…

Question

The Nernst equation for a cell reaction at 298 K is E_cell = E°_cell − (0.059/n) log Q. Here n is

Accepted Answer

B. {'text': 'The moles of electrons transferred per mole of reaction', 'label': 'B'}

1. Nernst equation relates cell EMF to activities of species.
2. At 298 K it simplifies with the constant 0.059/n V.
3. Here n is the number of moles of electrons exchanged in the balanced cell reaction.
4. For Daniell cell (Zn → Zn²⁺ + 2e⁻ etc.), n = 2.
_Source: NCERT Class 12 Chemistry, Unit 3 "Electrochemistry", §3.3_

Answer

{'text': 'The overall concentration ratio of the reactants involved', 'label': 'A'}

Answer

{'text': 'The number of ionic species produced in electrolyte', 'label': 'C'}

Answer

{'text': 'The temperature in kelvin of the electrochemical cell', 'label': 'D'}