5 - Conclusion
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Practice Questions
Test your understanding with targeted questions
Define Flux in the context of mass transfer.
💡 Hint: Think about how we quantify movement.
What does Fick’s Law describe?
💡 Hint: Recall the key formula relating concentration and flux.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What role does Fick's Law play in mass transfer?
💡 Hint: Recall the principles of molecules moving from high to low concentration.
True or False: Increased viscosity will always enhance diffusion.
💡 Hint: Think about how thick substances behave differently than thin ones.
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Challenge Problems
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Consider a river with contaminants entering at a concentration of 10 mg/L. The exit concentration is measured at 5 mg/L. If sediments provide an additional 3 mg/L, calculate the net impact on water quality and write a mass balance equation to represent this.
💡 Hint: Remember to define all variables clearly before solving.
During an experiment, the diffusion coefficient of a pollutant in water was found to be 0.1 cm²/s at a certain temperature. What might you expect the diffusion coefficient to be at a higher temperature, and why?
💡 Hint: Think about how heat affects molecular speed in liquids.
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