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Air-particle collision frequency

Values for calculation

σ \mathrm{m}
N_A \mathrm{kmol^{-1}}
R^* \mathrm{J\cdot\ K^{-1}\cdot\ kmol^{-1}}
M \mathrm{kg\cdot\ kmol^{-1}}
p_{air} \mathrm{Pa}
T \mathrm{K}

Calculation

Air-particle collision frequency

ω=4\cdot σ^2\cdot N_A \cdot\sqrt{\cfrac{π}{R^*\cdot M}}\cdot\cfrac{p_{air}}{\sqrt{T}}