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Which of the following changes will incr...

Which of the following changes will increase the `EMF` of the cell `:`
`Co(s)|CoCl_(2)(M_(2))||HCl(M_(2))||(H_(2),g)Pt`

A

increase the volume of the `CoCl_2` solution from 100 to 200 mL

B

Increase M2 from 0.010 to 0.500

C

Increase the pressure of `H_2(g)` from 1.00 to 2.00 atm

D

Increase the mass of the Co electrode from 10.0 to 20.0 g

Text Solution

Verified by Experts

The correct Answer is:
B
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FIITJEE-ELECTROCHEMISTRY-Assignment Problems (Objective) Level -II
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  2. Daniel cell, the EMF of the cell can b e increased b y

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  3. Units of conductance are

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  4. The standard emf for the cell reaction, Zn+Cu^(2+) to Cu^(2+) to Cu+...

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  5. A salt bridge

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  6. z On the electrolysis of an aqueous solution of NaF using the gram equ...

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  7. A piece of Cu is added to an aqueous solution of FeClg

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  8. Pick out the wrong statement, An electrochemical cell stops working on...

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  9. What is not true about S.H.E.?

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  10. On the electrolysis of very dilute aqueous solution of NaOH using Pt ...

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  11. In which case (E("cell")-E("cell")^(@)) is zero

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  12. Reaction taking place in a fuel cells are:

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  13. Which of the following changes will increase the EMF of the cell : C...

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  14. Consider the cell : Cd(s)|Cd^(2+)(1.0M)||Cu^(2+)(1.0M)|Cu(s) If we...

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  15. What is the value of the reaction quotient, Q, for the cell? Ni(s)|N...

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  16. By passage of 1 F of electricity:

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  17. The cell emf is independent of concentration of the species of the cel...

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  18. Predict whether a spontaneous reaction will occur:

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  19. Standard electrode potential data are useful for understanding the sui...

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