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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is viscosity?
💡 Hint: Think about how syrup flows compared to water.
Question 2
Easy
How does temperature affect viscosity?
💡 Hint: Consider how heating syrup affects its flow.
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 happens to diffusion rates when viscosity increases?
- Increases
- Decreases
- Remains the same
💡 Hint: Remember the analogy of flowing syrup versus water.
Question 2
True or False: Convection decreases the resistance against mass transfer.
- True
- False
💡 Hint: Consider how stirring affects diffusion.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Consider two pollutants in a river: one with low viscosity and one with high viscosity. If both are subjected to the same temperature, which will diffuse faster and why?
💡 Hint: Refer to how syrup moves differently than water.
Question 2
A scientist measures the diffusion rates of two gases in a controlled environment. Gas A has a molecular weight of 28 g/mol, while Gas B has 44 g/mol. Assuming temperature remains constant, compare their diffusion coefficients.
💡 Hint: Think about how lighter gases spread quicker in air.
Challenge and get performance evaluation