Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define molecular diffusion.
💡 Hint: Think about concentration gradients.
Question 2
Easy
What does bulk flow refer to?
💡 Hint: Consider what happens when water flows.
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 is molecular diffusion?
- Movement due to temperature differences
- Movement from high to low concentration
- Movement due to external forces
💡 Hint: Focus on what drives the movement.
Question 2
True or False: Diffusion stops occurring at equilibrium.
- True
- False
💡 Hint: Think about what equilibrium means.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A chemical is released into a deep lake with no wind. Describe how the pollutant will spread over time and the mechanisms involved.
💡 Hint: Consider the effects of water movement on diffusion.
Question 2
In groundwater with slow movement, pollutants are tracked from a source to a well. Explain how molecular diffusion plays a role in this scenario.
💡 Hint: Think about the driving factors for mass transport in low flow rates.
Challenge and get performance evaluation