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In a fuel cell, hydrogen and oxygen reac...

In a fuel cell, hydrogen and oxygen react to produce electricity. In the process hydrogen is oxidised at the anode and oxygen at the cathode. If `67.2 L` of `H_2`, at STP react in 15 minutes, what is the average current produced. If the entire current is used for electro deposition of copper from copper (II) solution, how many grams of copper will be deposited?

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Ans: At the anode `H_2+2 OH^- 2 H_2 O+2 e` At the cathode `O_2+2 H_2 O+2 e^- 4 OH^-` No. of moles of `H_2`, reacting at `STP` `` , quad=67.2 ~L/22.4 ~L=3 moles `` Quantity of electricity flowing for 1 mole `H_2` `` ...
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