$A$ fuel cell uses $CH_4$ gas and it forms $CO_3^{2-}$ at the anode. It is used to power a car with $96.5 \ A$ for $10000 \ s$. The volume of $CH_4$ gas required at $1 \ atm$ and $273 \ K$ is $............ \ L$.

Depict the galvanic cell in which the reaction $Zn_{(s)} + 2Ag^{+}_{(aq)} \rightarrow Zn^{2+}_{(aq)} + 2Ag_{(s)}$ takes place. Further show:
$(i)$ Which of the electrode is negatively charged?
$(ii)$ The carriers of the current in the cell.
$(iii)$ Individual reaction at each electrode.

What are reactive electrodes and inert electrodes? Give examples.

The cell reaction $Cu + 2Ag^{+} \to Cu^{+2} + 2Ag$ is best represented by

In the process of obtaining chlorine from brine,the minimum value of $E_{cell}$ should be ....... $V$.

In an electrochemical cell,