begin mathsize 36px style Z subscript A A end subscript equals fraction numerator straight pi. straight n. straight sigma. straight c subscript ave over denominator square root of 2 end fraction end style

ZAA=Collision frequency ; n = Molecules per unit Volume; σ = Diameter of the gas molecules ;

cave=Average Velocity of the gas molecules; 

ZAA

n

σ

c

 
Collision frequency can be measured using this online chemistry tool which is based on the formula that is derived from the collision theory. This calculator should be used when the gas is composed of a single gas. Collision frequency is the number of collisions that occur in unit time per volume.          

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