As temperature increases, the rate of diffusion _____.

increases

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decreases

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remains same

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increases and then decreases

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Solution

Explanation:
Diffusion is caused by the movement of atoms or molecules from an area of higher concentration to one of lower concentration.
As temperature increases, the kinetic energy of matter increases and more intermixing of matter takes place.
Due to this increase in kinetic energy, the movement of the particles increases, which increases the rate of diffusion.
Therefore, as temperature increases, the rate of diffusion increases.
Hence, option (A) is correct.

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