Why is diffusion fastest in gases compared to liquids and solids? Provide an example to illustrate your answer.
BiologyClass 9CBSEAnswered 12 May 2026
Answer
Diffusion is fastest in gases because their particles are far apart and move rapidly and randomly with high kinetic energy and negligible intermolecular forces. This allows for quick intermixing.
For example, when an incense stick is lit in one corner of a room, its fragrance quickly spreads throughout the entire room due to the rapid diffusion of gas particles.
Suggested Q&A
Biology · Class 9- BiologyClass 9A boy runs along a circular track of radius 7 meters. If he completes one full round in 22 seconds, calculate his average speed and the magnitude of his average velocity for this round.
- BiologyClass 9What is the function of stomata in the epidermis of plant leaves?
- BiologyClass 9Describe the general characteristics of connective tissues that set them apart from other animal tissues.
- BiologyClass 9Distinguish between primary growth and secondary growth in plants, indicating which meristems are responsible for each.
- BiologyClass 9What is the role of intercalated discs in cardiac muscle tissue?
- BiologyClass 9Enlist the major types of cells found in blood and their specific functions.