1.

Which of the following concentration cells with produce maximum E_("cell") at 298 K [Take P_(H_2)=1.0 atm in each case.]

Answer»

`PT|H_2(g)|H^(+)(0.01M)||H^(+)(0.1 M) |H_2(g)|Pt`
`Pt|H_2(g)|NH_4Cl(0.01 M)||HCl (0.1 M) |H_2(g)|Pt`
`Pt|H_2(g)|H^(+)(0.1 M)||H^(+) (0.2 M) |H_2(g) | Pt`
`Pt|H_2(g)|H^(+)(pH=0.0)||H^(+)(pH=0.0)|H_2(g)|Pt`

Solution :SINCE `(H^+)` given by `NH_4Cl` will be less than 0.01 M so CELL emf will be more . `E_("cell")` increases as concentration of CATHODIC compartment increases.


Discussion

No Comment Found

Related InterviewSolutions