What is the Mean Free Path of water in it's liquid state?

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SUMMARY

The mean free path of water in its liquid state is primarily defined as the distance between neighboring molecules due to their constant contact. Unlike gases, where free particles can travel significant distances before collisions, liquids exhibit a much shorter mean free path due to the closely packed molecular structure. While it is possible to apply kinematic mean-free-path analysis to liquids, such an approach lacks accuracy and relevance in practical scenarios.

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What is the Mean Free Path of water in it's liquid state?

Just wondering how far an electron could travel in water before a collision?
 
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The mean free path has more significance when you are talking about a collection of free particles, i.e. a gas, an not so much a liquid. In a liquid, the molecules are loosely bound, so they are constant contact of each other. The mean free path of a liquid would thererfore be the distance between neighboring molecules. You could treat a liquid as a gas and do a kinematic mean-free-path analysis of it, but I don't think it would be very accurate.
 

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