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The acts as a catalyst to speed up the diffusion process, allowing the molecules to overcome it; the activation energy causes the reaction to proceed at the faster rate.  

Answer

Diffusion is directly proportional to Kinetic energy and with increase in temperature kinetic energy increases . 

Answer

As the temperature increases, the amount of energy available fordiffusion is increased. This means that a given particle will move faster (there is more energy >pushing= it) at a higher temperature. Thus the rate of diffusion will be fasteras the temperature increases

Answer

At higher temperatures the Kinetic energy increases which directly proportional to diffusion.Hence at high temperatures the diffusion becomes faster.

Answer
Faster diffusion will take place if the surroundings are warmer. Increase in temperature means an increase in molecules' speed (kinetic energy). So the molecules move faster and there will be more spontaneous spreading of the material which means that diffusion occurs more quickly.
Answer
diffusion is from the random motion of molecules. since hot water molecules move faster than cold water molecules, diffusion will occur more quickly in hot water

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