Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
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.
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is molecular diffusion?
💡 Hint: It relates to concentration gradients.
Question 2
Easy
Define bulk flow.
💡 Hint: Think of moving water in a river.
Practice 4 more questions and get performance evaluation
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is molecular diffusion?
💡 Hint: Think about gradients.
Question 2
True or False: In a river, diffusion is the most significant transport mechanism.
💡 Hint: Consider the flow of water.
Solve 1 more question and get performance evaluation
Push your limits with challenges.
Question 1
Calculate the time required for a pollutant to diffuse from one end of a 100 m lake to the other, assuming a diffusion coefficient of 1.0 x 10^-5 m^2/s.
💡 Hint: Use the formula for diffusion time.
Question 2
Discuss the environmental implications of relying solely on diffusion for pollutant transport in an unsaturated soil layer.
💡 Hint: Think about pollutant persistence in time.
Challenge and get performance evaluation