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Faraday's Second Law

In a fuel cel...

Question

In a fuel cell, H2& O2 react to produce electricity. In the process, H2 gas is oxidized at the anode & O2 at the cathode . If 67.2 litre of H2 at STP react in 15 minutes, If the entire current is used for electrode deposition of Cu from Cu (II) solution, how many grams of Cu will be deposited?

A

190.5 g

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B

160 g

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C

280 g

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D

320 g

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Solution

The correct option is A
190.5 g

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Similar questions

In a fuel cell, H2& O2 react to produce electricity. In the process, H2 gas is oxidized at the anode & O2 at the cathode . If 67.2 litre of H2 at STP react in 15 minutes, If the entire current is used for electrode deposition of Cu from Cu (II) solution, how many grams of Cu will be deposited?

Q. In a fuel cell,

H_{2}

O_{2}

react to produce electricity. In the process,

H_{2}

gas is oxidized at the anode and

O_{2}

gas is reduced at the cathode. If

67.2 litres

H_{2}

S T P

react in 15 minutes and the entire current is used for electrode deposition of

C u

C u (I I)

solution, how many grams of

C u

will be deposited and what is the average current produced?
Anode :

H_{2} + 2 O H^{-} \to 2 H_{2} O + 2 e^{-}

O_{2} + 2 H_{2} O + 4 e^{-} \to 4 O H^{-}

Q. In a fuel cell,

H_{2}

O_{2}

react to produce electricity. In the process,

H_{2}

gas is oxidized at the anode and

O_{2}

gas is reduced at the cathode. If

67.2 litres

H_{2}

S T P

react in 15 minutes and the entire current is used for electrode deposition of

C u

C u (I I)

solution, how many grams of

C u

will be deposited and what is the average current produced?
Anode :

H_{2} + 2 O H^{-} \to 2 H_{2} O + 2 e^{-}

O_{2} + 2 H_{2} O + 4 e^{-} \to 4 O H^{-}

Q. In a fuel cell,

H_{2}

O_{2}

react to produce electricity. In the process

H_{2}

gas is oxidised at the anode and

O_{2}

is reduced at the cathode. If

67.2 L

H_{2}

S T P

15 m i n

, what is the average currecnt produced? If the entire current is used for electro deposition of

C u

C u^{2 +}

, how many grams of

C u

Q. In a fuel cell

H_{2}

O_{2}

react to produce electricity. In the process

H_{2}

gas is oxidised at the anode and

O_{2}

is reduced at the cathode. If

67.2

H_{2}

N T P

15

minute, what is the average current produced? If the entire current is used for electro-deposition of

C u

C u^{2 +}

g

C u

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