What is the reaction occurring at the anode in a $CH_4 - O_2$ fuel cell?
- A$2O_2 + 8H^{+} + 8e^{-} \rightarrow 4H_2O$
- B$CH_4 + 2H_2O \rightarrow CO_2 + 8H^{+} + 8e^{-}$
- C$CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O$
- D$2H^{+} + 2e^{-} \rightarrow H_2$
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Similar Questions
Which statement is correct for a fuel cell?
Easy
View SolutionMatch List-$I$ with List-$II$.
$LIST$-$I$ (Cell) $LIST$-$II$ (Use/Property/Reaction) $A$. Leclanche cell $I$. Converts energy of combustion into electrical energy $B$. Ni-Cd cell $II$. Does not involve any ion in solution and is used in hearing aids $C$. Fuel cell $III$. Rechargeable $D$. Mercury cell $IV$. Reaction at anode $Zn \rightarrow Zn^{2+} + 2e^-$
Choose the correct answer from the options given below:
| $LIST$-$I$ (Cell) | $LIST$-$II$ (Use/Property/Reaction) |
| $A$. Leclanche cell | $I$. Converts energy of combustion into electrical energy |
| $B$. Ni-Cd cell | $II$. Does not involve any ion in solution and is used in hearing aids |
| $C$. Fuel cell | $III$. Rechargeable |
| $D$. Mercury cell | $IV$. Reaction at anode $Zn \rightarrow Zn^{2+} + 2e^-$ |
Choose the correct answer from the options given below:
What advantage do the fuel cells have over primary and secondary batteries?
Medium
View SolutionOn charging the lead storage battery,the oxidation state of lead changes from $x_1$ to $y_1$ at the anode and from $x_2$ to $y_2$ at the cathode. The values of $x_1, y_1, x_2, y_2$ are respectively $:$
The standard Gibbs free energy change ($\Delta G^{\circ}$ in $kJ \, mol^{-1}$) in a $Daniell$ cell $(E^{\circ}_{cell} = 1.1 \, V)$, when $2 \, moles$ of $Zn_{(s)}$ is oxidised at $298 \, K$, is closest to:
DifficultKVPY 2011
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