Unit 2: Electrochemical Cells and Ionic Solutions
16 Questions
3 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the Nernst equation used for in electrochemistry?

  • Calculating the emf of a galvanic cell (correct)
  • Calculating the resistance in an electrolytic cell
  • Determining the standard potential of a cell
  • Calculating the equilibrium constant of a cell reaction

What does molar conductivity (✆m) of ionic solutions measure?

  • The electronic conductivity of a solution
  • The conductivity of a solution at infinite dilution (correct)
  • The rate of corrosion in a solution
  • The resistance of a solution to electrical flow

What does Kohlrausch's law describe regarding molar conductivity?

  • The variation of molar conductivity with concentration (correct)
  • The relationship between molar conductivity and temperature
  • The calculation of molar conductivity using Faraday's constant
  • The behavior of molar conductivity at zero dilution

What does the construction of primary and secondary batteries involve?

<p>Using electrochemical processes to generate electrical energy (D)</p> Signup and view all the answers

How can corrosion be described in terms of electrochemistry?

<p>An electrochemical process leading to metal degradation (B)</p> Signup and view all the answers

What aspect of electrolysis does electrochemistry focus on?

<p>The quantitative understanding of chemical reactions driven by electricity (B)</p> Signup and view all the answers

What is the main focus of electrochemistry?

<p>Producing electricity from chemical reactions (D)</p> Signup and view all the answers

What is the purpose of a galvanic or voltaic cell?

<p>Converting chemical energy into electrical energy (B)</p> Signup and view all the answers

What happens when the opposing voltage reaches the value of 1.1 V in a galvanic cell?

<p>The reaction stops altogether (B)</p> Signup and view all the answers

What is the function of an electrolytic cell?

<p>Using electrical energy to carry non-spontaneous chemical reactions (B)</p> Signup and view all the answers

Which of the following is an example of a product produced by electrochemical methods?

<p>Aluminum foil (D)</p> Signup and view all the answers

What do batteries and fuel cells do?

<p>Convert chemical energy into electrical energy (C)</p> Signup and view all the answers

What happens in an electrolytic cell when the external potential is increased?

<p>The reaction continues to take place (C)</p> Signup and view all the answers

What are the electrodes of a Daniell cell made of?

<p>Zinc and copper (D)</p> Signup and view all the answers

What does an external opposite potential do in a galvanic cell?

<p>Starts the reaction in the opposite direction (A)</p> Signup and view all the answers

What is a significant application of electrochemistry?

<p>Conversion of sunlight into electricity using solar panels (D)</p> Signup and view all the answers

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser