View source for Debye

{{also|Debye}}
==English==
{{wikipedia}}

===Etymology===
Named after Dutch-American physicist and physical chemist {{w|Peter Debye}}.

===Pronunciation===
* {{IPA|en|/dəˈbaɪ/}}
* {{rhymes|en|aɪ|s=2}}

===Noun===
{{en-noun}}

# {{lb|en|physics}} The [[CGS]] [[unit]] of [[electric dipole]] [[moment]], defined as 1 D = 10<sup>-18</sup> [[statcoulomb]]-[[centimetre]] and computable from the [[SI]] unit [[coulomb]]-[[metre]] by multiplying by the factor 3.33564 × 10<sup>-30</sup>.
#: {{syn|en|Debye unit}}
#* {{quote-book|en|year=1976|author=George Scatchard|title=Equilibrium in Solutions: Surface and Colloid Chemistry|pageurl=https://books.google.com.au/books?id=O-6FAAAAIAAJ&q=%22debyes%22&dq=%22debyes%22&hl=en&sa=X&ved=0ahUKEwi37Y3ArtPfAhXFIZAKHTaRAZsQ6AEI_gIwRQ|page=197|publisher=w:Harvard University Press
|passage=The dipole moments of water and the alcohols are about 1.8 '''debyes'''. The moments of ethers are smaller, about 1.2 '''debyes'''.}}
#* {{quote-book|en|year=1997|author=J. R. Becker|title=Crude Oil Waxes, Emulsions, and Asphaltenes|publisher={{w|PennWell|PennWell Publishing Company}}|pageurl=https://books.google.com.au/books?id=Qw9gwzzf4SAC&pg=PA224&dq=%22debyes%22&hl=en&sa=X&ved=0ahUKEwi37Y3ArtPfAhXFIZAKHTaRAZsQ6AEIzQEwIA#v=onepage&q=%22debyes%22&f=false|page=224
|passage=There is considerable transfer of negative charge to the carbon atoms in the pyrrole ring, which give it a high dipole moment ≈ 1.8 '''Debyes'''.}}
#* {{quote-book|en|year=2011|author=Humberto Soscún|chapter=Ab initio and DFT study of the static dipole (hyper)polarizabilities of benzaldehyde and thio-benzaldehyde molecules in gas phase|editors=G. Maroulis; T. Bancewicz; B. Champagne; A. D. Buckingham|title=Atomic and Molecular Nonlinear Optics: Theory, Experiment and Computation|publisher=IOS Press|pageurl=https://books.google.com.au/books?id=VRjvAgAAQBAJ&pg=PA468&dq=%22debyes%22&hl=en&sa=X&ved=0ahUKEwi37Y3ArtPfAhXFIZAKHTaRAZsQ6AEIKDAA#v=onepage&q=%22debyes%22&f=false|page=468
|passage=The corresponding results obtained here for <math>\mu</math> of benzaldehyde range 1.298 '''Debyes''' — 1.471 '''Debyes''', where the lower reported experimental value corresponds to the gas phase one of 1.263 '''Debyes''', which is in good correspondence with the <math>\mu</math> calculated at MP4 level (1.298 '''Debyes''').}}

====Usage notes====
* Historically defined as the [[electric dipole]] [[moment]] resulting from two equal but opposite charges of absolute magnitude <math>10^{-10}</math> [[statcoulomb]] separated by 1 [[ångström]].
* It is used much more frequently than the SI unit, being suited for measurements at the molecular scale relevant to chemistry and atomic physics. In contrast, the SI unit is inconveniently large.

===See also===
* {{pedia|Electric dipole}}
* {{pedia|Electric dipole moment}}
* {{pedia|Buckingham (unit)}} {{qualifier|CGS unit of electric quadrupole}}
* [http://www.ibiblio.org/units/dictD.html#debye debye] in "[http://www.ibiblio.org/units How Many? A Dictionary of Units of Measurement]" on {{w|ibiblio}}

===Anagrams===
* {{anagrams|en|a=bdeey|bedye}}

{{cln|en|eponyms}}

==Romanian==

===Etymology===
{{bor+|ro|en|debye}} or {{bor|ro|fr|debye}}.

===Noun===
{{ro-noun|m|-}}

# {{l|en|debye}}

====Declension====
{{ro-noun-m|n=sg}}