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UGC NET Exam  >  UGC NET Questions  >  According to Faraday’s first law of ele... Start Learning for Free
According to Faraday’s first law of electrolysis, the amount of any substance deposited at the electrode is directly proportional to the quantity of
  • a)
    Voltage drop
  • b)
    Resistance
  • c)
    Electricity passed
  • d)
    Tolerance
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
According to Faraday’s first law of electrolysis, the amount of ...
According to Faraday’s law of electrolysis, the amount of any substance deposited at the electrode is directly proportional to the quantity of electricity passed. It is given by:
m = ( Q / F ) * ( M / Z )
where, m = Mass of the substance liberated at an electrode in grams
Q = Total electric charge passed through the substance in Coulombs
F = Faraday constant
M = Molar mass of the substance in grams per mol
Z = Valency number of ions of the substance
For Faraday’s first law, M, F, and z are constants, so that the larger the value of Q the larger m will be.
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Most Upvoted Answer
According to Faraday’s first law of electrolysis, the amount of ...
The first law of electrolysis, proposed by Michael Faraday, states that the amount of any substance deposited at an electrode during electrolysis is directly proportional to the quantity of electricity passed through the cell. This law can be expressed mathematically as:

Amount of substance deposited ∝ Quantity of electricity passed

Let's break down this concept into key points:

- Faraday's first law of electrolysis:
- This law states that the amount of substance deposited at an electrode is directly proportional to the quantity of electricity passed through the cell during electrolysis.

- Amount of substance deposited:
- Refers to the mass of the substance that is formed at the electrode during the electrolysis process.

- Quantity of electricity passed:
- Refers to the total charge (in coulombs) that flows through the cell during electrolysis. This is typically measured in terms of current (amperes) and time (seconds).

- Direct proportionality:
- This means that as the quantity of electricity passed through the cell increases, the amount of substance deposited at the electrode also increases proportionally.

- Implications of Faraday's law:
- This law is crucial in understanding and predicting the outcomes of electrolysis experiments. It helps in determining the amount of product that will be formed based on the flow of electricity through the cell.

In conclusion, Faraday's first law of electrolysis establishes a direct relationship between the amount of substance deposited at an electrode and the quantity of electricity passed through the cell. This fundamental principle is essential in the field of electrochemistry and is widely used in various industrial processes.
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According to Faraday’s first law of electrolysis, the amount of any substance deposited at the electrode is directly proportional to the quantity ofa)Voltage dropb)Resistancec)Electricity passedd)ToleranceCorrect answer is option 'C'. Can you explain this answer?
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