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An electrochemical cell is shown below ...

An electrochemical cell is shown below `Pt, H_(2)(1 "atm")|HCl(0.1 M)|CH_(3)COOH(0.1 M)|H_(2)(1 "atm")`, The emf of the cell will not be zero, because

A

The pH of 0.1 M HCl and 0.1 M acetic acid is not the same

B

Acids used in two compartments are different

C

E.M.F of a cell depends on the molarities of acids used

D

The temperature is constant

Text Solution

Verified by Experts

The correct Answer is:
A
The pH of 0.1 M HCl and 0.1 M acetic acid is not the same, because HCl is a strong acid to its pH is less and `CH_(3)COOH` is a weak acid, so its pH is more.
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Knowledge Check

  • An electrochemical cell is set up as : Pt H_(2) (1 atm) | HCl (0.1 M) || CH_(3) COOH (0.1 M) | H_(2) (1 atm) Pt. The e.m.f. of this cell wil not be zero , because

    A
    the temperature is constant.
    B
    e.m.f depends on molarities of acids used
    C
    acids used in two compartments are different .
    D
    pH of 0.1 M HCl and 0.1 M `CH_(3) COOH` is not same

  • The electrochemical cell is set up as pt, H_(2)(1 atm)| HCl (0.1 M)|| CH_(3)COOH (0.1 M) | H_(2) (1 atm) , pt. The emf of the cell is (Ka =10^(-3) xx 1.8 )

    A
    0
    B
    Positive
    C
    Negative
    D
    Cannot be determined

  • An electrochemical cell is set up as follows : Pt (H_(2) , atm ) | 0.1 M HCl |0.1 M acetic acid | (H_(2) , 1 atm ) Pt EMF of this cell will not be zero because

    A
    the temperature is constant
    B
    the pH of 0.1 M HCl and 0.1 M acetic acid is not the same
    C
    acids used in the two compartments are different
    D
    EMF of a cell depends on molarities of the acids used.

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