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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is Fick's Law of Diffusion?
💡 Hint: Think about how a perfume spreads in a room.
Question 2
Easy
Name one factor that increases the diffusion coefficient.
💡 Hint: Consider the effect of heat on movement.
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 law indicate?
- Diffusion happens at constant rate
- Substances move from lower to higher concentration
- Substances move from higher to lower concentration
💡 Hint: Consider how fragrances spread.
Question 2
True or False: An increase in temperature decreases diffusion.
- True
- False
💡 Hint: Think of how heating something speeds it up.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Calculate the expected flux of a pollutant in water if its concentration gradient between the sediment and water is known, considering a diffusion coefficient of 0.1 m²/s.
💡 Hint: Remember that the negative sign indicates direction; focus on the concentration gradient.
Question 2
Assess how changing the density of water from 1g/cm³ to 0.5g/cm³ would impact the diffusion rate of a pollutant.
💡 Hint: Compare the movement of a ping pong versus a bowling ball in water.
Challenge and get performance evaluation