(B) According to Faraday's first law of electrolysis,the mass deposited $W$ is directly proportional to the charge $Q$ $(W = ZIt)$.Therefore,$\frac{W_

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(B) According to Faraday's first law of electrolysis,the mass deposited $W$ is directly proportional to the charge $Q$ $(W = ZIt)$.Therefore,$\frac{W_1}{W_2} = \frac{I_1 \times t_1}{I_2 \times t_2}$.Given: $W_1 = m$,$I_1 = 4 \ A$,$t_1 = 2 \ \text{minutes} = 120 \ \text{seconds}$.Given: $I_2 = 6 \ A$,$t_2 = 40 \ \text{seconds}$.Substituting the values: $\frac{m}{W_2} = \frac{4 \times 120}{6 \times 40}$.$\frac{m}{W_2} = \frac{480}{240} = 2$.$W_2 = \frac{m}{2} \ g$.

Class 12 Chemistry Electrochemistry Faraday’s law of electrolysis

Medium

In the process of electroplating,$m \ g$ of silver is deposited when $4 \ A$ of current flows for $2 \ \text{minutes}$. The amount (in $g$) of silver deposited by $6 \ A$ of current flowing for $40 \ \text{seconds}$ will be:

A
$4 \ m$
B
$\frac{m}{2}$
C
$\frac{4 \ m}{3}$
D
$3 \ m$

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Faraday’s law of electrolysis

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In the process of electroplating,$m \ g$ of silver is deposited when $4 \ A$ of current flows for $2 \ \text{minutes}$. The amount (in $g$) of silver deposited by $6 \ A$ of current flowing for $40 \ \text{seconds}$ will be:

Similar Questions

How many grams of cobalt metal will be deposited when a solution of cobalt $(II)$ chloride is electrolyzed with a current of $10 \ A$ for $109$ minutes? ($1 \ Faraday = 96,500 \ C$; Atomic mass of $Co = 59 \ u$)

In the electrolysis of a $CuSO_4$ solution,how many grams of $Cu$ are plated out on the cathode,in the time that is required to liberate $5.6 \ L$ of $O_{2(g)}$,measured at $1 \ atm$ and $273 \ K$,at the anode (in $g$)?

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