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collision frequency

   Also found in: Wikipedia 0.01 sec.
collision frequency [kə′lizh·ən ‚frē·kwən·sē]
(physics)
The average number of collisions undergone by a particle traveling through a material, such as an electron traveling through a gas, in a unit time.


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Some perspective: Allstate ranks cities on collision frequency based on the company's claims.
t0] = Z exp(-E/RT) (24) where Z is the collision frequency factor (total collision times of the reactants in unit time per unit volume when the reactants are of unit concentration), E is the activation energy, R is the universal gas constant, T is the absolute temperature, and exp(-E/RT) is the ratio of effective collision times to total collision times.
Traditionally, engineers have used collision frequency to evaluate the safety of an intersection.
 
 
 
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