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Henry's Law and Noisy Knuckles

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Doris R. Kimbrough

Chemistry Department Box 194, University of Colorado at Denver, P.O. Box 173364, Denver, CO 80217-3364

J. Chem. Educ., 1999, 76 (11), p 1509

DOI: 10.1021/ed076p1509

Publication Date (Web): November 1, 1999

Abstract

Henry's law describes the relationship between the pressure of a gas and the concentration of that gas in solution. Presented here is the application of Henry's law to the noise associated with "cracking" knuckles. Gases dissolved in the synovial fluid in joints rapidly come out of solution as the joint is stretched and pressure is decreased. This "cavitation" produces a characteristic noise.

Keywords (Audience):

High School / Introductory Chemistry

Keywords (Domain):

Public Understanding / Outreach

Keywords (Feature):

Applications and Analogies

Keywords (Subject):

Gases

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This article has been cited by 2 ACS Journal articles (2 most recent appear below).

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Erwin Boschmann
Journal of Chemical Education2003 80 (6), 704
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  Journal of Chemical Education2003 80 (6), 704
  This paper describes a chemistry course taught at Indiana University–Purdue University, Indianapolis via television, with a Web version added later. The television format is a delivery technology; the Web is an engagement technology and is preferred since ...
  Abstract | Hi-Res PDF | PDF w/ Links
The Science Teacher: Summer 2000 Reading
Steve Long
Journal of Chemical Education2000 77 (7), 825
- The Science Teacher: Summer 2000 Reading
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  Journal of Chemical Education2000 77 (7), 825
  Summer signals the time for another review of chemistry-related articles published in The Science Teacher (TST). This review covers articles published from December 1999 through April 2000.
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Received: August 03, 2009

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Henry's Law and Noisy Knuckles