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Millikan's Oil Drop Experiment

For the produ...

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For the production of y L H2 at STP at cathode, cost of electricity is x, then cost of production of y L O2 at STP at anode will be

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Q. Cost of electricity for the production of

X

H_{2}

N T P

at the cathode is Rs

X

, then cost of electricity for the production

X

O_{2}

N T P

at the anode will be:

1

mole of electrons as one unit of electricity]

Q. In a fuel cell

H_{2}

O_{2}

react to product electricity. In the process, hydrogen is oxidized at anode and oxygen at cathode. If 67.2 l of

H_{2}

at STP reacts in 15 min, the average current produced (

i n A

) is_______. (nearest value)

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

O_{2} + 2 H_{2}) + 2 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 anode and

O_{2}

at cathode. If 67.2 litre of

H_{2}

at STP reacts in 15 minutes. The average current produced is:

Q. During the preparation of

H_{2} S_{2} O_{8}

(per disulphuric acid)

O_{2}

gas also releases at anode as by product. When

9.72 L

H_{2}

releases at cathode and

2.35 L O_{2}

at anode at STP, the weight of

H_{2} S_{2} O_{8}

produced in gram is:

Q. In the electrolysis of

H_{2} O

, 11.2 litre of

H_{2}

liberated at cathode at STP. How much

O_{2}

will be liberated at anode under the same conditions?

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