Manipal MET2012ChemistryElectrochemistry
In which of the following case, increase in concentration of ion cause increase in E_ cell ?
Options
- APt ( H ₂ ) H ⁺(a q)
- BPt Quinhydrone H ⁺ (aq)
- CAg Ag ⁺(a q)
- DAg , AgCl Cl ⁻(a q)
Correct answer
D. Ag , AgCl Cl ⁻(a q)
Step-by-step solution
aligned & (a) 1 2 H ₂(g) H ⁺(a q)+e⁻ & E_ cell =E_ cell ^ -0.0591 [ H ⁺ ] aligned E_ cell =E_ cell ^ -0.0591 [ H ⁺ ]^2 (c) gathered Ag (s) Ag ⁺(a q) E_ cell =E_ cell ^ -0.0591 [ Ag ⁺ ] gathered (d) gathered Ag (s)+ Cl ⁻(a q) AgCl (s)+e⁻ E_ cell =E_ cell ^ -0.0591 1 [ Cl ⁻ ] gathered Thus, in case (d), the E_ cell increases with increase in the concentration of ions.