In a hydrogen oxyge fuel cell, electricity is produced. In this process `H_2`(g) is oxided at anode and `O_2`(g) reduced at cathode Given: Cathode `O_2(g)+2H_2O(l)+4e^(-)to4OH^(-)(aq)` Anode `H_2(g)+2OH^(-)(aq)to2H_2O(l)+2e^(-)` 4.48 litre `H_2` at 1atm and 273 k oxidised in 9650 sec. If current produced in fuel cell, is used for the deposition of `Cu^(+2)` in 1L,2M `CuSO_4`(aq) solution for 241.25 sec using Pt. electrode, the pH of solution after electrolysis is:
A
1
B
2
C
3
D
4
Text Solution
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The correct Answer is:
B
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In a hydrogen oxyge fuel cell, electricity is produced. In this process H_2 (g) is oxided at anode and O_2 (g) reduced at cathode Given: Cathode O_2(g)+2H_2O(l)+4e^(-)to4OH^(-)(aq) Anode H_2(g)+2OH^(-)(aq)to2H_2O(l)+2e^(-) 4.48 litre H_2 at 1atm and 273 k oxidised in 9650 sec. The current produced is (in amp):
In a hydrogen oxyge fuel cell, electricity is produced. In this process H_2 (g) is oxided at anode and O_2 (g) reduced at cathode Given: Cathode O_2(g)+2H_2O(l)+4e^(-)to4OH^(-)(aq) Anode H_2(g)+2OH^(-)(aq)to2H_2O(l)+2e^(-) 4.48 litre H_2 at 1atm and 273 k oxidised in 9650 sec. The mass of water produced is :
O_(3)(g)+I^(-)(aq)+H_(2)O(l) to
In a fuel cell H_(2) and 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 6.72 litre of H_(2) at NTP reacts in 15 minute, what is the average current produced ? If the entire current is used for electro-deposition of Cu from Cu^(2+) , how many g of Cu are deposited ?
The reaction, 2H_(2)O(l) to 4H^(+)(aq.)+O_(2)(g)+4^(-) is
Observe the following reaction, 2NO_(2)(g) + 2OH^(-)(aq) to NO_(3)^(-)(aq) + H_(2)O (l) + NO_(2)^(-) (aq) in this reaction,
electricity. In the process H_(2) gas is oxidized at the anode and O_(2) at cathode. If 67.2 litre of H_(2) st S.T.P reacts in 15 minute, what is average current produced ? If the entire current is used for electro-deposition of Cu from Cu^(2+) , how many gram of Cu are deposite ? Cathode : O_(2)+2H_(2)O+4e^(-)rarr4OH^(-) Anode : H_(2)+2OH^(-)rarr 2H_(2)+2e^(-)