Question 1:
During electrolysis, which of the following describes the process that occurs at the cathode?
Explanation: During electrolysis, reduction occurs at the cathode, where positively charged ions gain electrons and are reduced to neutral atoms or molecules.
Question 2:
What is the relationship between the amount of substance deposited during electrolysis and the quantity of electric charge passed through the electrolyte?
Explanation: The amount of substance deposited during electrolysis is directly proportional to the quantity of electric charge passed through the electrolyte. This relationship is known as Faraday's First Law of Electrolysis.
Question 3:
Faraday's Second Law of Electrolysis states that the ratio of the amounts of different substances deposited or liberated by the same quantity of electric charge passing through an electrolyte is:
Explanation: Faraday's Second Law of Electrolysis states that the ratio of the amounts of different substances deposited or liberated by the same quantity of electric charge passing through an electrolyte is proportional to their equivalent masses.
Question 4:
Which of the following factors does NOT affect the rate of electrolysis?
Explanation: Temperature does not directly affect the rate of electrolysis. However, it may indirectly influence the reaction rates due to changes in the electrolyte's conductivity or the activation energy of the reactions.
Question 5:
What is the unit of electric charge in the context of Faraday's laws and electrolysis?
Explanation: The unit of electric charge in the context of Faraday's laws and electrolysis is the Coulomb (C).
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