Unformatted text preview: 3 Ammonium sulfate: Forms 2 NH 4 + and 1 SO 4 2-ions, ρ = 1.76 g/cm 3 Ammonium nitrate: Forms 1 NH 4 + and 1 NO 3-ions, ρ = 1.725 g/cm 3 2. Explain mathematically why an aerosol particle can never activate (form a cloud droplet) when the relative humidity is less than 100%. (hint: consider critical supersaturation) 3. What is the smallest spherical pure NaCl aerosol that will activate in a cloud that has a peak supersaturation of 0.1% (typical of stratocumulus clouds)....
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- Spring '07
- Ion, cloud droplets, peak supersaturation, critical supersaturation, pure NaCl aerosol