Biology – 3.1 Diffusion | e-Consult
3.1 Diffusion (1 questions)
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The rate of diffusion is affected by several factors.
- Temperature: Increasing the temperature increases the rate of diffusion. This is because higher temperatures mean the particles have more kinetic energy and move more rapidly. This increased kinetic energy leads to more frequent and faster random movement, resulting in a faster rate of diffusion.
- Distance: The rate of diffusion is inversely proportional to the distance over which the particles need to travel. The greater the distance, the longer it takes for the randomly moving particles to reach the other side. Therefore, the rate of diffusion decreases with increasing distance.
- Surface Area: Increasing the surface area increases the rate of diffusion. A larger surface area provides more opportunities for randomly moving particles to diffuse across. More particles can move across the surface in a given time, leading to a faster rate of diffusion.