preëxponential

See also: preexponential and pre-exponential

English

Adjective

preëxponential (not comparable)

1. Alternative spelling of preexponential
   • 1962, Journal of the American Chemical Society‎^[1], volume 84, self-published, page 2,689:

     In the equation s = W / A, where W = collision frequency per molecule, and A is taken as the Arrhenius preëxponential factor; s is the effective number of oscillators contributing to dissociation in the Kassel theory.

   • 1975: Université de Montréal, Société de biologie de Montréal, and Société de biologie de Québec, Revue Canadienne de Biologie, volume 33, page 134 (Presses de l’Université de Montréal)

     They also gave the activation energies and preëxponential factors for the pigments which they studied.