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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does diffusion mean?
💡 Hint: Consider how smells spread in a room.
Question 2
Easy
What is Fick's First Law?
💡 Hint: Think about mass moving along a gradient.
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 does Fick's First Law primarily describe?
- Mass diffusion under steady conditions
- Chemical reactions
- Thermal equilibrium
💡 Hint: Refers to the movement of particles.
Question 2
Is transient diffusion characterized by a change in concentration over time?
- True
- False
💡 Hint: Think about how systems change over time.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
In an experimental setup, a chemical spills and begins to diffuse in water. If the concentration at the center is initially 10 kg/m³ and decreases to 2 kg/m³ over a given period, calculate the average mass flux during this time using Fick’s First Law.
💡 Hint: Remember to find the concentration difference and the distance infected by pollution.
Question 2
A water tank evacuated through a pipe exhibits both heat loss and mass transfer. Define a situation where you would need to apply Fick’s Second Law to solve for the concentration as a function of time, and explain why it's necessary.
💡 Hint: Think of the relationship between outflow rate and concentration.
Challenge and get performance evaluation