The rate of diffusion is directly proportional to temperature; and The rate of diffusion is indirectly related to molecular weight (heavier particles move more slowly than lighter, smaller ones). At room temperature, the average velocity of a molecule is fast-about 2 km/sec (=3997 mph!).
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EMERALD ASH BORER PREPAREDNESS PLAN The Agrilus planipennis, commonly known as the Emerald Ash Borer or EAB, is an exotic beetle that was discovered in southeastern Michigan in 2002 and feeds exclusively on trees in the genus Fraxinus. Native to Asia and Eastern Russia, this tiny green beetle has killed 150-200