Chemistry Crash Course NEET>Chapter 9 - Electrochemistry>Level 1>Q 64

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IMPORTANT

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Two lead storage batteries were operated in separate experiments (I, II).

I. The maximum work obtained was ' $X$ ' at cell potential $2 V$ consuming $1$ mole of lead.
II. The maximum work obtained was ' $Y$ ' at cell potential $1.5 V$ consuming $0.1$ mole of lead.

Then, $X : Y$ is:

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Important Questions on Electrochemistry

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Chemistry Crash Course NEET>Chapter 9 - Electrochemistry>Level 1>Q 65

In a hydrogen-oxygen fuel cell, the combustion of hydrogen occurs to:

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Chemistry Crash Course NEET>Chapter 9 - Electrochemistry>Level 1>Q 66

When

9.65

coulombs of electricity is passed through a solution of silver nitrate (atomic mass of

Ag = 108 g {mol}^{- 1}),

the amount of silver deposited is

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Chemistry Crash Course NEET>Chapter 9 - Electrochemistry>Level 1>Q 67

The charge required to deposit

9 g

of

Al

from

{Al}^{3 +}

solution is (atomic weight of

Al = 27.0 g

)

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Chemistry Crash Course NEET>Chapter 9 - Electrochemistry>Level 1>Q 68

The quantity of electricity needed to deposit

127.08 g

of copper is

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Chemistry Crash Course NEET>Chapter 9 - Electrochemistry>Level 1>Q 69

Silver is a monovalent and has an atomic mass of

108 g .

Copper is a divalent and has an atomic mass of

63.6 g .

The same electric current is passed for the same length of time through a silver coulometer and a copper coulometer. If

27.0 g

of silver is deposited, the corresponding amount of copper deposited is

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Chemistry Crash Course NEET>Chapter 9 - Electrochemistry>Level 1>Q 70

By passing

0.1

Faraday of electricity through fused sodium chloride, the amount of chlorine liberated is (Atomic mass of

Cl = 35.45

)

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Chemistry Crash Course NEET>Chapter 9 - Electrochemistry>Level 1>Q 71

The specific conductivity of

N / 10 KCl

solution at

20 ° C

is

0.212 {ohm}^{- 1} {cm}^{- 1}

and the resistance of the cell containing this solution at

20 ° C

is

55 ohm .

The cell constant is

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Chemistry Crash Course NEET>Chapter 9 - Electrochemistry>Level 1>Q 72

If

0.01 M

solution of an electrolyte has a resistance of

40 ohms

in a cell having a cell constant of

0.4 {cm}^{- 1}

, its molar conductance in

ohm {}^{- 1} {cm}^{2} {mol}^{- 1}

will be