The mean free paths have been obtained for hydrogen, helium, nitrogen, carbon dioxide, methane, ethane, propane, butane and isobutane through mercury vapor. The decrease in intensity is observed as a beam of the gas passes through the vapor, any deviation as great as a half degree removing the molecules from the beam. The free paths measured in this way are, as is expected, several times smaller than the values determined from viscosity data.
Proceedings of the Iowa Academy of Science
©1935 Iowa Academy of Science, Inc.
Eldridge, John A.
"Mean Free Paths of Gas Molecules in Mercury Vapor,"
Proceedings of the Iowa Academy of Science, 42(1), 155-155.
Available at: https://scholarworks.uni.edu/pias/vol42/iss1/68