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combined gas law
a relationship that describes the behavior of gases by combining Boyle's law, Charles' law and Gay-Lussac's law
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  February 20 in chemistry
  1836 - Isaac Adams, Jr. born: pioneer in nickel plating.
  1844 - Ludwig Boltzmann born: statistical mechanics; thermodynamics, especially the second law; Maxwell-Boltzmann distribution of molecular speeds; Stefan-Boltzmann law of blackbody radiation; Boltzmann constant is named after him.
  1900 - Erika Cremer born: theory and development of gas chromatography; chemical kinetics.
  1901 - Henry Eyring born: chemical kinetics (transition-state theory, Eyring equation).
  1923 - Helen Murray Free born: diagnostic chemistry: reagents and instrumentation for clinical diagnosis in blood and urine chemistry, histology, and cytology.
  1937 - Robert Huber born: three-dimensional structure of proteins involved in photosynthesis; Nobel Prize, 1988.
   sources: http://webserver.lemoyne.edu/faculty/giunta/week.html, http://todayinsci.com

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