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Questions and Answers
What phenomenon describes the movement of molecules from a higher concentration to a lower concentration?
What phenomenon describes the movement of molecules from a higher concentration to a lower concentration?
What effect does a steep concentration gradient have on the rate of diffusion?
What effect does a steep concentration gradient have on the rate of diffusion?
When bromine is poured into a gas jar, what happens to the bromine liquid?
When bromine is poured into a gas jar, what happens to the bromine liquid?
Which statement best describes the nature of molecules in diffusion?
Which statement best describes the nature of molecules in diffusion?
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What is created when there is a difference in concentrations of molecules between two areas?
What is created when there is a difference in concentrations of molecules between two areas?
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Study Notes
Diffusion
- Liquids and gases are made of tiny particles called molecules.
- These molecules have energy and move randomly.
- This random movement causes molecules to spread out and fill available space.
- Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration.
- This movement continues until the molecules are evenly distributed.
- Bromine is a volatile liquid that is orange-brown at room temperature.
- When bromine is poured into a gas jar and another gas jar is placed over the top, the bromine vaporizes.
- Bromine molecules then diffuse and spread into the upper gas jar.
- The difference in concentrations of molecules in two areas is called a concentration gradient.
- A steeper concentration gradient leads to faster diffusion.
- A less steep concentration gradient leads to slower diffusion.
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Description
Explore the fascinating process of diffusion, where molecules move from areas of high concentration to low concentration. This quiz covers the random movement of molecules, the concept of concentration gradient, and examples such as bromine diffusion. Test your understanding of these key concepts in the study of diffusion.
