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Particle Deposition Mechanisms: Mass Diffusion Effect of Mass The diffusivity as given by (3) and (4) is independent of particle density, but heavy particles do not respond swiftly to the molecular impacts. A time dependent analysis leads to
where Aerosol Mean Free Path The apparent mean free path for aerosol particles
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, (10)
reduces to Equation (5).
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From the definition of stop distance it follows that
is of
the order of 10-6 cm for d < 5 μ.|
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