NTA Abhyas NEET2020ChemistryElectrochemistryPractice
For the cell reaction, Cu 2+ (C 1 ) (aq) + Zn(s) → Zn 2+ (C 2 ) (aq) + Cu(s), the change in free energy ( Δ G ) at a given temperature is a function of
Options
- Al n C 1
- Bl n ( C 2 / C 1 )
- Cl n ( C 1 + C 2 )
- Dl n C 2
Correct answer
B. l n ( C 2 / C 1 )
Step-by-step solution
ΔG = ΔG o + RT lnQ ΔG = ΔG o + RT ln Zn +2 Cu +2 ΔG = ΔG o + RT ln C 2 C 1 So, Δ G is function of l n ( C 2 / C 1 ) .