Mean Free Path of Gases by a Direct Method

Authors

John A. Eldridge, State University of IowaFollow

Document Type

Research

Abstract

Apparatus consists of a brass tube partitioned into chambers. Partitions contain small holes which are exactly aligned. Gas is introduced at a pressure of several millimeters at one end; a vacuum is maintained in other chambers by rapid pumping and the molecular beam passing through the aligned holes is measured by impact upon a vane suspended from a quartz fiber. Introduction of a gas in one of intermediate chambers deflects away a definite proportion of the beam giving a direct measure of the mean free path.

Publication Date

1930

Journal Title

Proceedings of the Iowa Academy of Science

Volume

37

Issue

1

First Page

315

Last Page

315

Copyright

©1930 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

Recommended Citation

Eldridge, John A. (1930) "Mean Free Path of Gases by a Direct Method," Proceedings of the Iowa Academy of Science, 37(1), 315-315.
Available at: https://scholarworks.uni.edu/pias/vol37/iss1/85