mean free path
Pronunciation
Noun
B2 Upper-intermediate
Quick answer
The average distance a particle travels between one collision and the next.
Test yourself
Which word fits the gap? "At higher pressure, gas molecules are packed closer together and their _____ shortens."
Answer: mean free path
In your own words, what does "mean free path" mean?
The average distance a particle travels between one collision and the next.
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