The scheme for rechargeable battery, used in automobiles working with electricity, is given below:
$Z n (s) | Z n C L_{2} (a q) | |^{-} (a q) | C L^{2} | C^{(s)}$
If the battery gives a current of $1.00 \times 10^{3}$ amperes, how many kilograms of $C l_{2}$ are consumed?

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Solution

$Z n ⟶ Z n^{2 +} + 2 e^{-}$
$C l_{2} + 2 e^{-} ⟶ 2 C l^{-}$
$∴ n = 2$
$w = Z i t$
$w = \frac{M}{96500 \times n} \times i \times t$
Let $t = 1 s \Rightarrow w = \frac{2 \times 63.5}{96500 \times 2} \times 1 \times 10^{3} \times 1$
$= 0.658 g$
$= 6.58 \times 10^{- 4} K g$

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