Practice Transient (Unsteady) Diffusion - 4.2 | Introduction to Mass Transfer | Heat Transfer & Thermal Machines
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define transient diffusion.

💡 Hint: Think about how things change over time.

Question 2

Easy

What does Fick's Second Law describe?

💡 Hint: Consider its role in measuring changes.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What term describes the time-dependent movement of mass from high to low concentration?

  • Steady-State Diffusion
  • Transient Diffusion
  • Mass Concentration

💡 Hint: Think about how concentration behaves over time.

Question 2

Fick's Second Law relates to which kind of diffusion?

  • True
  • False

💡 Hint: Remember the law's role in describing changes.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A piece of wood absorbs moisture from the air over time. Use Fick’s Second Law to derive a general expression for changes in moisture content.

💡 Hint: Consider initial conditions and moisture representation.

Question 2

Predict the time it takes for a chemical to diffuse through a barrier if you know its diffusivity and concentration gradient.

💡 Hint: Apply mathematical modeling to your diffusion scenario.

Challenge and get performance evaluation