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Graham's Law and Perpetuation of Error

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Stephen J. Hawkes

Oregon State University, Department of Chemistry, Gilbert Hall 153, Corvallis, OR 97331-4003

J. Chem. Educ., 1997, 74 (9), p 1069

DOI: 10.1021/ed074p1069

Publication Date (Web): September 1, 1997

Section:

History, Education, and Documentation

Abstract

Grahams Laws of effusion and diffusion are used in recent articles for traditional experiments to which they do not in fact apply and for which they give the wrong answer.

Keywords (Audience):

High School / Introductory Chemistry

Keywords (Domain):

Laboratory Instruction

Keywords (Pedagogy):

Misconceptions / Discrepant Events

Keywords (Subject):

Gases

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This article has been cited by 1 ACS Journal articles (1 most recent appear below).

Sublimination of Iodine at Various Pressures: Mutlipurpose Experiments in Inorganic and Physical Chemistry
Ilya A. Leenson
Journal of Chemical Education2005 82 (2), 241
- Sublimination of Iodine at Various Pressures: Mutlipurpose Experiments in Inorganic and Physical Chemistry
  Ilya A. Leenson
  Journal of Chemical Education2005 82 (2), 241
  The aim of this article is to elucidate some interesting phenomena, which can be observed in the process of heating solid iodine in closed vessels at various pressures. The experiments provide useful possibilities for discussing the following items: ...
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