During diffusion, what causes particles to spread out over time?

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Study for the Abeka Science Matter and Energy Test 7. Enhance your knowledge with flashcards and multiple-choice questions, each with explanations. Get ready for academic success!

Multiple Choice

During diffusion, what causes particles to spread out over time?

Explanation:
Diffusion is driven by the random motion of particles due to their thermal energy. Each particle moves unpredictably and collides with others, so particles naturally spread from regions of higher concentration to regions of lower concentration. Over time, this random movement leads to a more uniform distribution without needing an outside push. External forces, gravity, or magnetic fields can influence movement in some situations, but diffusion itself comes from the inherent random motion of the particles.

Diffusion is driven by the random motion of particles due to their thermal energy. Each particle moves unpredictably and collides with others, so particles naturally spread from regions of higher concentration to regions of lower concentration. Over time, this random movement leads to a more uniform distribution without needing an outside push. External forces, gravity, or magnetic fields can influence movement in some situations, but diffusion itself comes from the inherent random motion of the particles.

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