Start learning →

For ΔG° < 0 (spontaneous), E° must be:

APositive
BVariable
CZero
DNegative
Answer & Solution
Correct answer: A. Positive
ΔG° = -nFE°. For ΔG° < 0 (spontaneous), we need -nFE° < 0, so E° > 0. Positive cell potential indicates spontaneous galvanic cell.
Practise this question with Quill — JEE Advanced →

Keep practising Unit 9B1: Electrochemical Cells and Standard Potentials

Browse all Unit 9B1: Electrochemical Cells and Standard Potentials questions for JEE Advanced, or explore more Chemistry topics.

Start a Unit 9B1: Electrochemical Cells and Standard Potentials lesson →
Related questions
For a cell reaction reversed in direction, E° becomes:Resistance of a conductivity cell filled with 0.1 M KCl is 100 Ω. Specific conductivity κ Standard reduction potential ranking. Which is the strongest oxidizing agent?Lead acid battery (used in cars) overall reaction:Hydrogen-Oxygen fuel cell produces:Specific conductance κ has units:Equilibrium constant for cell with E° = 0.118 V, n = 2, at 25°C:Time to deposit 1.27 g of Cu from CuSO₄ solution at 2 A current (Cu atomic mass = 63.5):