NTA Abhyas NEET2020ChemistryElectrochemistryPractice
Consider the following reaction at equilibrium 2 F e 2 + ( a q ) + C u 2 + → 2 F e 3 + ( a q ) + C u When the reaction comes to equilibrium, what is the cell voltage?
Options
- A0.43 V
- B1.11 V
- C0.78 V
- D0 V
Correct answer
D. 0 V
Step-by-step solution
When the equilibrium is attained in cell reaction, the cell will no longer do any electrical work, i.e., Δ G = 0 - Δ G = n E c e l l F So 0 = n E c e l l F or E c e l l = 0 .