File:Collisions of slow moving electrons with nitrogen molecules (1918) (14777758044).jpg

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Identifier: collisionsofslow00karr (find matches)
Title: Collisions of slow moving electrons with nitrogen molecules
Year: 1918 (1910s)
Authors: Karrer, Sebastian
Subjects: Electron-molecule collisions Collisions (Physics) Atom-molecule collisions Theses
Publisher:
Contributing Library: University of Illinois Urbana-Champaign
Digitizing Sponsor: University of Illinois Urbana-Champaign

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U. OF 1. S. S. FQHM 3
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J OF 1. S. S. FQ3M 3 25 B. Relation Between Pressure andQC.- Curve No. 14 shows th-vtthe number of collisions which the electron makes in one centimeterdistance varies directly as the pressure of the gas. The retardingand accelerating potential differences were kept constant duringthese experiments, the pressure alone being varied. This result iswhat would be expected since the greater the number of gas moleculespresent the more collisions the electron .vill make in a unit distanceThis seems to be the first time that this relation has been actuallytested for slow moving electrons. ^or the sake of comparisons it iswell to reduce OC to a pressure of one mm. of mercurv. This is per-missible in view of the relation just established. Then if p is thepressure 2 = N,P is the number of collisions an electron would make with the gas mole-cules if the pressure of the gas were one mm. The three pointsmarked P on Curve 14 were calculated from data te.ken at times abouttwo weeks apart, and serve a

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https://www.flickr.com/photos/internetarchivebookimages/14777758044/

Author Karrer, Sebastian
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Flickr tags
InfoField
  • bookid:collisionsofslow00karr
  • bookyear:1918
  • bookdecade:1910
  • bookcentury:1900
  • bookauthor:Karrer__Sebastian
  • booksubject:Electron_molecule_collisions
  • booksubject:Collisions__Physics_
  • booksubject:Atom_molecule_collisions
  • booksubject:Theses
  • bookcontributor:University_of_Illinois_Urbana_Champaign
  • booksponsor:University_of_Illinois_Urbana_Champaign
  • bookleafnumber:76
  • bookcollection:university_of_illinois_urbana-champaign
  • bookcollection:americana
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29 July 2014
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