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The Faraday's first law of electrolysis states that: (2018)

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Question: The Faraday\'s first law of electrolysis states that: (2018)

Options:

  1. The mass of substance deposited is directly proportional to the current
  2. The voltage is directly proportional to the current
  3. The energy is conserved
  4. The temperature remains constant

Correct Answer: The mass of substance deposited is directly proportional to the current

Exam Year: 2018

Solution: 

Faraday\'s first law states that the mass of a substance deposited at an electrode is directly proportional to the quantity of electricity passed through the electrolyte.

The Faraday's first law of electrolysis states that: (2018)

Practice Questions

Q1
The Faraday's first law of electrolysis states that: (2018)
  1. The mass of substance deposited is directly proportional to the current
  2. The voltage is directly proportional to the current
  3. The energy is conserved
  4. The temperature remains constant

Questions & Step-by-Step Solutions

The Faraday's first law of electrolysis states that: (2018)
  • Step 1: Understand that electrolysis is a process where electricity is used to cause a chemical change.
  • Step 2: Know that there are two electrodes in electrolysis: an anode (positive) and a cathode (negative).
  • Step 3: Remember that when electricity flows through the electrolyte (the solution), it causes substances to move towards the electrodes.
  • Step 4: Faraday's first law tells us that the amount of substance (like metal) that gets deposited on the electrode depends on how much electricity flows through the solution.
  • Step 5: This means if you pass more electricity, more substance will be deposited, and if you pass less electricity, less substance will be deposited.
  • Faraday's First Law of Electrolysis – The law states that the mass of a substance deposited at an electrode during electrolysis is directly proportional to the amount of electric charge passed through the electrolyte.
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