AP EAMCET20226 Jul 2022Evening ShiftChemistryElectrochemistryActual
The standard Gibbs' energy change for Daniel cell reaction is aligned & Zn (s)+ Cu ²⁺(a q) Zn ²⁺(a q)+ Cu (s) & E_ cell ^ =1.1 ~V . aligned
Options
- A-212.3 ~kJ
- B106.15 ~kJ
- C+212.3 ~kJ
- D100 ~kJ
Correct answer
A. -212.3 ~kJ
Step-by-step solution
Given, aligned n, E_ cell ^ & =1.1 ~V n & =2 F & =96500 C / mol G & =-n F E^ & =-2 96500 1.1 & =-212300 ~J & =-212.3 ~kJ aligned