CHEMISTRY
JAMB 2000 - Question 27
Chemistry 2000 JAMB Past Questions - Question 27: Given that M is the mass of substance deposited in an electrolysis and Q the quantity of electricity consumed, then Faraday's law can be written as [Electrochemical equivalent]
Choose the correct answers from the options given.
A:
B:
C:
D:
Correct Answer
B
Explanation
Faraday's law of electrolysis states that the mass of a substance deposited during electrolysis is directly proportional to the quantity of electricity passed through the electrolyte. This relationship can be expressed by the equation:
M = Z * Q / (n * F)
Where:
M = mass of substance deposited
Z = electrochemical equivalent (a constant specific to the substance being deposited)
Q = quantity of electricity passed through the electrolyte
n = number of electrons involved in the reaction
F = Faraday's constant (the charge of one mole of electrons)
This equation shows the direct relationship between the mass of the substance deposited (M) and the quantity of electricity consumed (Q) during the electrolysis process.
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