Diffusion and Mixing

🎯 Learning Objectives

  • Students will be able to define diffusion and explain the mechanism at the particle level
  • Students will be able to identify factors that affect the rate of diffusion
  • Students will be able to distinguish between diffusion and osmosis

🧠 Core Concepts

  • concentration_gradient
  • random_motion
  • osmosis
  • semipermeable_membrane
  • rate_of_diffusion

📐 Formulas

$$R \propto \frac{A \cdot \Delta C}{d}$$
Fick's Law of Diffusion
Interesting Fact
Some substances diffuse millions of times slower than others due to differences in size and molecular interactions
Key Scientist
Thomas Graham
Studied diffusion of gases and developed Graham's law
Modern Research
Drug delivery systems exploit diffusion principles; understanding diffusion rates is essential for pharmacology, pollution control, and materials processing.

Want to truly master this? Try the interactive lesson!

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