In the electrochemic al cell `Zn|Zn^(2+)||H^(+)|Pt,H_(2)` `E_("cell")^(@)=E_("cell")` when

Question

In the electrochemic al cell `Zn|Zn^(2+)||H^(+)|Pt,H_(2)` `E_("cell")^(@)=E_("cell")` when

In the electrochemic al cell
`Zn|Zn^(2+)||H^(+)|Pt,H_(2)`
`E_("cell")^(@)=E_("cell")` when
A. `[Zn^(2+)]=[H^(+)]=1M ` and `pH_(2)=1` atm.
B. `[Zn^(2+)]=0.01M.[H^(+)]=0.1M` and `pH_(2)=1` atm
C. `[Zn^(2+)]=1M. [H^(+)]=0.1M` and `pH_(2)=0.01`atm
D. All of the above.

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Related Questions

In the cell reaction `Cu(S) + 2 Ag^(+) (aq) to Cu^(2+) (aq) + 2 Ag(s) , E_("cell")^(@) = 0.46` V By doubling the concentration of `Cu^(2+) , E_("cell"

2 Answers 4 Views

In a poteometer a cell of emf 1.5V gives a balanced point 32cm length of the cell is replaced by another cell then the balance point shifts to 65.0cm

2 Answers 4 Views

In the cell `Zn//Zn^(+2) (c_(1))//cu^(+2)//Cu, E_(cell) - E_(cell)^(0) = 0.059 V` The ratio `(C_(1))/(C_(2)) at 298 K` will be

2 Answers 4 Views

If in a galvanic cell, the cell reaction is reversed as `Cu(s)|Cu^(2_(aq)||Zn^(2)aq|Zn` the cell potential will be

2 Answers 5 Views

Among the following cells Lecianche cell (1), Nickel cadmium cell (II). Lead storage battery (III), Mercury cell (IV), primary cells are

2 Answers 4 Views

The logarithm of the equilibrium constant of the cell reaction corresponding to the cell `X(s)|X^(2+)(aq)|| Y^(+)|Y(s)` with standard cell potential `

2 Answers 4 Views

A cell when dipped in 0.5 M sucrose solution has no effect but when the same cell will be dipped in 0.5 M NaCl solution the cell will

2 Answers 4 Views

A cell reaction is given as : `A (s)+B^(2+)(aq)harrA^(2)(aq)+B(s)` Equilibrium constant `(K_(c))` for the cell is 10. Calculate `E_(cell)^(@)`.

2 Answers 8 Views

A galvanic cell has `E_(cell)^(@)=1.5" V"`. If an opposing potential of `1.5" V"` is applied to cell, what will happen to the cell reaction and curren

2 Answers 5 Views

Fuel cell is an electrical cell which converts chemical energy into electrical energy. The most successful fuel cell is `H_(2)-O_(2)` fuel cell, which

2 Answers 4 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Correct Answer - d
`Zn+2H^(+)rarrZn^(2+)+H_(2)`
`E_("cell")^(@)=E_("cell")^(@)-(RT)/(nF)InQ`
`=E_("cell")^(@)-(RT)/(nF)In((Zn^(2+))(pH_(2)))/([H^(+)]^(2))`
(A) When `[Zn^(2+)]=[H^(+)]`=1M and `pH_(2)` =1atm
`Q=1, "In" Q=0`
`therefore E_("cell")^(@)=E_("Cell")^(@)`
(C) When `[Zn^(2+)]=1M.[H^(+)]=0.1` and
`pH_(2)=0.01`
`Q=(0.01xx1)/((0.1)^(2))=1`
`therefore E_("cell")=E_("cell")^(@)`
Thus all the choices (A,B and C) are correct. Thus the correct answer is D.