Abstract
Starting with the fundamental theory of Knudsen about molecular gas flow through orifices and especially through circular cylindrical tubes, several investigators have derived formulas for the calculation of the transmission probability. Here the equations of Knudsen, Dushman, Clausing, De Marcus, Berman, and, very recently, Nawyn and Meyer are compared. For very accurate calculations the calculation method of Nawyn and Meyer must be used. If accuracies of 0.1% are adequate, the simple equations of Berman can be used.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
