Question

Which is true according to the Faraday Law of electrolysis? Here $m$ is the mass deposited at an electrode, $Q$ is the charge at the electrode and $I$ is the current passed.

• A. $m\propto I^2$
• B. $m\propto Q$
• C. $m\propto Q^2$
• D. $m$ does not depend on $Q$

Answer 1

Answer: (B)

$m\propto Q$

$W=ZQ$(according to Faradays law of electrolysis)

or $m=ZQ$

$m=$ mass deposited

$m=Z\times I\times t$

So $m\propto Q$