Home
Class 12
CHEMISTRY
In a galvanic cell, the following cell r...

In a galvanic cell, the following cell reaction occurs :
`Zn (s) + 2Ag^(+ )(aq) to Zn^(2+) (aq) + 2Ag (s) E_("cell") = + 1.56 V`
(a) Is the direction of flow of electrons from zinc to silver or silver to zinc ?
(b) How will concentration of `Zn^(2+)` ions and `Ag^(+ )`ions be affected when the cell functions ?

Text Solution

Verified by Experts

(a) Flow of electrons will take place from zinc to silver. (b) The reaction takes place as under: `Zn + 2Ag^(+) to Zn^(2+) + 2Ag`
Therefore concentration of `Zn^(2+)` ions will increase and that of `Ag^(+)` ions will decrease
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    U-LIKE SERIES|Exercise CASE BASED/SOURCE-BASED INTEGRATED QUESTIONS (LONG ANSWER QUESTIONS-I (3 MARKS EACH))|27 Videos

  • ELECTROCHEMISTRY

    U-LIKE SERIES|Exercise CASE BASED/SOURCE-BASED INTEGRATED QUESTIONS (LONG ANSWER QUESTIONS-II (5 MARKS EACH))|16 Videos

  • ELECTROCHEMISTRY

    U-LIKE SERIES|Exercise CASE BASED/SOURCE-BASED INTEGRATED QUESTIONS (VERY SHORT ANSWER QUESTIONS (1 MARK EACH))|47 Videos

  • COORDINATION COMPOUNDS

    U-LIKE SERIES|Exercise SELF ASSESSMENT TEST|7 Videos

  • EXAMINATION PAPER 2020

    U-LIKE SERIES|Exercise SECTION D|15 Videos

Similar Questions

Explore conceptually related problems

In a galvanic cell, the following reaction: Zn(s)+2Ag^(2+)(aq)toZn^(2+)(aq)+2Ag(s),E_(cell)^(@)=1.50V (a) Is the direction of flow of electrons from zinc to silver or silver to zinc? (b) How will the concentration of Zn^(2+) ions and Ag^(+) ions be affected when the cell functions?

What is the direction of flow of electrons in the following cell ? Zn|Zn^(2+)||Ag^(+)|Ag

Knowledge Check

  • Consider the following cell reaction Cu(s)+2Ag^(+)(aq) rarr Cu^(2+) (aq) +2Ag(s) E_("cell")^(@)=0.46 V By boubling the concentration of Cu^(2+) , E_("cell") is

    A
    doubled
    B
    halved
    C
    increases nut less than double
    D
    decreases by a small fraction

  • In the cell reaction Cu(s) + 2Ag^+ (aq) to Cu^(2+) (aq) + 2Ag(s) , E_("cell")^@ = 0.46V. by doubling the concentration of Cu^(2+) , E_("cell")^@ is

    A
    doubled
    B
    halved
    C
    increases but less than double
    D
    no change

  • A galvanic cell involves the following reaction: Zn(s)+2Ag^(+) (aq.) hArr Zn^(2+) (aq.)+2Ag(s) Select the correct statements among the following :

    A
    Zinc is negatively charged
    B
    The given redox process is spontaneous
    C
    `Ag^(+) +e^(-) rarr Ag`, takes place at anode
    D
    `Zn(s) rarr Zn^(2+)+2e^(-)`, takes place at cathode

    • Similar Questions

    Explore conceptually related problems

    Write Nernst equation for the following cell reaction : Zn(s) | Zn^(2+)(aq)|| Cu^(2+)(aq) | Cu(s)

    Consider the cell reaction of an electrochemical cell : Ni(s) + 2 Ag^(+)("aq") rarr Ni^(2+) ("aq") + 2 Ag (s) and answer the questions : Mention the direction of flow of electrons.

    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")^(@) is

    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

    The cell reaction Zn(s)+2Ag^(+)(aq)rarrZn^(2+)(aq)+Ag(s) is best represented by

    Home
    Profile