Today we did something pretty cool, we used something new which is called potassium permanganate. This experiment is based on diffusion. Well to explain diffusion is the transfer of material from a high concentration area to a low concentration area. Diffusion occurs in liquids and gases because their particles travel randomly from one location to another. Diffusion is a crucial mechanism for living organisms because it allows chemicals to enter and exit cells.
Types of equipment:
- Tweezers
- Petri Dish
- KMnO4
- Hot water and a cold water
Questions: Does temperature speed up or slow down diffusion? The larger the concentration difference, the faster the rate of diffusion. The higher the temperature, the more kinetic energy the particles have, causing them to travel and mix faster. The higher the rate of diffusion, the larger the surface area.
Result: The temperature of a material is proportional to the rate at which its molecules move. As a result, the molecules in hot water moved quicker than those in cold water. This allows the dye in the hot water to disperse or travel more quickly throughout the water. To be honest, when I saw the results of this experiment. The crystals spread faster in the hot water, other than the cold water which is really interesting. Hot water will equal Quicker Diffusion
Conclusion: The particles in Hot water are moving faster than it did in the cold water.
No comments:
Post a Comment
To support my learning I ask you to comment as follows:
1. Something positive - something you like about what I have shared.
2. Thoughtful - A sentence to let us know you actually read/watched or listened to what I had to say
3. Something helpful - how have you connected with my learning? Give me some ideas for next time or ask me a question.