What does Faraday's law of electrolysis state?

What does Faraday's law of electrolysis state?

• A. The current must be constant for reactions to proceed
• B. The amount of substance produced is proportional to the quantity of electricity passed
• C. The resistance must remain unchanged during electrolysis
• D. The temperature must be maintained at room temperature

Answer: (B)

Faraday's law of electrolysis states that the amount of substance produced at an electrode during electrolysis is directly proportional to the quantity of electricity (in coulombs) that passes through the electrolyte. This relationship is fundamental in electrochemistry, illustrating how the electrical charge affects the amount of chemical change occurring in an electrochemical reaction. This means that if you increase the amount of electric current flowing through the system for a specific duration, you will proportionally increase the amount of substance that is either deposited at the cathode or dissolved at the anode, depending on the nature of the electrochemical reaction taking place. Faraday's law mathematically expresses this relationship through the formula: \[ m = \frac{Q}{F} \] where \( m \) is the mass of the substance produced, \( Q \) is the total electric charge (in coulombs), and \( F \) is Faraday's constant (approximately \( 96485 \) coulombs per mole of electrons). This foundational principle is used in various applications, such as electroplating and battery technology, highlighting its importance in the field of electrochemistry. In contrast, the other options discuss criteria like keeping the current constant, maintaining unchanged resistance, or controlling

Faraday's law of electrolysis states that the amount of substance produced at an electrode during electrolysis is directly proportional to the quantity of electricity (in coulombs) that passes through the electrolyte. This relationship is fundamental in electrochemistry, illustrating how the electrical charge affects the amount of chemical change occurring in an electrochemical reaction.

This means that if you increase the amount of electric current flowing through the system for a specific duration, you will proportionally increase the amount of substance that is either deposited at the cathode or dissolved at the anode, depending on the nature of the electrochemical reaction taking place. Faraday's law mathematically expresses this relationship through the formula:

[ m = \frac{Q}{F} ]

where ( m ) is the mass of the substance produced, ( Q ) is the total electric charge (in coulombs), and ( F ) is Faraday's constant (approximately ( 96485 ) coulombs per mole of electrons).

This foundational principle is used in various applications, such as electroplating and battery technology, highlighting its importance in the field of electrochemistry.

In contrast, the other options discuss criteria like keeping the current constant, maintaining unchanged resistance, or controlling