# Explain diffusion phenomenon based on the state of matter.

By BYJU'S Exam Prep

Updated on: September 25th, 2023

The rate of diffusion is observed rarely in solids, is greater in liquids than in solids, and in gases, it is higher as the intermolecular space is more, it moves with great kinetic energy. The spreading and blending of one substance into another as a result of particle movement is known as diffusion. Up until the uniform distribution is reached, it moves from the area of high concentration to the area of low concentration.

### Diffusion Phenomenon based on the State of Matter

1) Diffusion occurs in Solids, Liquids, and gases.

2) Diffusion in Gases:

• Gases have a faster rate of diffusion because they have larger intermolecular space and travel with higher kinetic energies.
• Less dense gases spread more quickly than heavier ones.
• example: Mixing of two gases.

3) Diffusion in Liquids:

• Compared to solids, liquids exhibit a higher rate of diffusion.
• example: Mixing of KMnO4 solution in water.

4) Diffusion rate in Solids:

• Rarely is the diffusion rate in solids observed.

5) factors affecting the rate of diffusion:

• Temperature: The rate of diffusion increases as the temperature rises.
• Density: The rate of diffusion declines as density rises.

Importance of Diffusion:

The following are some reasons why diffusion is significant:

1. This procedure aids in releasing carbon dioxide gas into the blood through the cell membrane during the respiration process.
2. In plant cells, diffusion also takes place. Water from the earth diffuses into all green plants through their root hair cells.

Summary:

## Explain diffusion phenomenon based on the state of matter.

Rarely is the rate of diffusion seen in solids; it is higher in liquids than in solids; and, since there is more intermolecular space in gases, it is higher. Diffusion is the blending and spreading of one substance into another.

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