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Question

In a hydrogen oxygen fuel cell, electricity is produced. In this process H2(g) is oxidised at anode and O2(g) reduced at cathode.

Given: Cathode O2(g)+2H2O(l)+4e4OH (aq)

Anode H2(g)+2OH(aq)2H2O(l)+2e

4.48 litre H2 at 1 atm and 273K oxidised in 9650 sec.

The current produced is (in amp):

A
1A
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B
2A
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C
4A
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D
8A
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Solution

The correct option is C 4A
2×(4.48×122.4)=22×I×965096,500

I=4 amp.

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