9 Questions
In the context of electrolysis, according to Faraday's first law, what is the relationship between the mass of substance deposited or liberated and the amount of charge passed?
Directly proportional
What does the term 'electrochemical equivalent' refer to in the context of electrolysis?
Mass of substance deposited per unit charge passed
When a solution of Ag is electrolyzed with a current of 1.5 amperes, what is the equivalent weight of Ag if 10g of copper is deposited at the cathode in 20 minutes?
$0.2938 \text{ g}$
What is the mass of nickel that will be deposited at the cathode if a current of 5.0 amperes is passed through a Ni solution for 20 minutes?
$63.15 \text{ g}$
What does Gibbs free energy represent in the context of electrochemical reactions?
Energy available to do non-expansion work
How is Gibbs free energy related to the spontaneity of a chemical reaction?
Zero Gibbs free energy indicates an equilibrium reaction.
What is the significance of Faraday's second law of electrolysis?
It establishes the concept of equivalent weight.
How can one calculate the electrochemical equivalent of a substance?
$\text{Equivalent weight} \div \text{Molar mass}$
What is the role of Faraday's constant in electrolysis calculations?
$\text{Amount of charge passed} = \text{Current} \times \text{Time} \times \text{Faraday's constant}$
Test your knowledge on predicting the cell potential of an electrochemical cell based on electrode reactions, standard electrode potentials, concentration of electrolyte, and Nernst temperature. Understand how to calculate the cell potential for a given half-cell reaction equation. Determine the potential of a metal under specified conditions.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
