Home
Class 12
CHEMISTRY
The temperatuer coefficient, of the emf,...

The temperatuer coefficient, of the emf, i.e., `(dE)/(dt) = -0.00065` Volt `deg^(-)` for the cell, `Cd| CdCl_(2)(1 M) ||AgCl(s)| Ag` at `25^(@)`.
Calcualte the entropy changes `DeltaS_(298K)` for the cell reaction,
`Cd + 2AgCl rightarrow Cd^(2+) + 2Cl^(-) + 2Ag`

A

`-105.5JK^(-)`

B

`-150.2 JK^(-)`

C

`-75.7 JK^(-)`

D

`-125.5 JK^(-)`

Text Solution

Verified by Experts

The correct Answer is:
D
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ELECTROCHEMISTY

    GRB PUBLICATION|Exercise Faraday s Laws and Electrolysis|87 Videos

  • ELECTROCHEMISTY

    GRB PUBLICATION|Exercise Conductance and Kohlrausch s law|40 Videos

  • ELECTROCHEMISTY

    GRB PUBLICATION|Exercise Batteries|10 Videos

  • D-BLOCK ELEMENTS

    GRB PUBLICATION|Exercise Subjective Type|18 Videos

  • ENVIRONMENTAL CHEMISTRY

    GRB PUBLICATION|Exercise Straight objective type|40 Videos

Similar Questions

Explore conceptually related problems

The e.m.f. of the cell Cd(s)|CdCl_(2)(0.1M)||AgCl(s)|Ag(s) in which the cell reaction is Cd(s)+2AgCl(s)to2Ag(s)+Cd^(2+)(aq)+2Cl^(-)(aq) is 0.6915 V at 0^(@)C and 0.6753 at 25^(@)C . Calculate the enthalpy change of the reaction at 25^(@)C .

If the temperature coefficient of EMF if -0.125V K^(-1), DeltaS for the given cell at 25^(@)C is : Fe|Fe^(2+)(aq)||Cd^(2+)(aq)|Cd

Knowledge Check

  • The temperature coefficient of the emf i.e. (dE)/(dT)=0.00065"volt".deg^(-1) for the cell Cd|CdCl_(2)(1M)||AgCl(s) |Ag at 25^(@)C calculate the entropy changes triangleS_(298K) for the cell reaction, Cd+2AgCltoCd^(++)+2Cl^(-)+2Ag

    A
    `-105.5JK^(-1)`
    B
    `-150.2JK^(-1)`
    C
    `-75.7JK^(-1)`
    D
    `-125.5JK^(-1)`

  • If E_(Cd)^(0) = 0.408 V and E_(Ag)^(0) = -799 V , the emf of the cell Cd| Cd^(2+) || Ag^(+) | Ag is

    A
    `-1.207` V
    B
    `+1.207` V
    C
    `-0.391 V `
    D
    `+0.391 V `

  • The emf of the following cell: Cd(s)| CdCl_(2) (0.10M)|AgCl(s)Ag(S) Is 0.6915V at 0.6753V at 25^(@) C . The DeltaH of reaction in KJ at 25^(@)C is

    A
    (-176)
    B
    (-234.7)
    C
    `(123.5)`
    D
    `(-167.6)`

    • Similar Questions

    Explore conceptually related problems

    The EMF of the following cell : Cd(s)|CdCl_(2)(0.10M)|AgCl(s)|Ag(s) is 0.6915V at 0^(@)C and 0.6753V at 25^(@)C . The DeltaH of reaction in kJ at 25^(@)C is

    Cell reaction for the cell Zn|Zn^(2+)(1.0M)||Cd^(2+)(1.0M)|Cd is given by

    The reaction taking place in the cell Pg|H_(2)(g)|HCl(1.0M)|AgCl|Ag is 1 atm

    The E_(Ag)^(@) = 0.80 V and E_("cell")^(@) = 1.20 V , for the cell . 2 Ag^(+) + Cd to 2 Ag + Cd^(2+) , the E_(Cd)^(o) is

    Calcualte the EMF of the cell at 298K Pt|H_(2)(1atm) | NaOH(xM), NaCl(xM) | AgCl(s) | Ag E_(Cl^(-)|AgCl|Ag)^(@) = +0.222V

    Home
    Profile