Which of the following is false about changes in aerosol suspensions over time?
a. Liquid aerosol particles can shrink (evap-oration) or grow (water absorption).
b. The rate of particle growth is directly proportional to particle size.
c. Small water-based particles tend to shrink when exposed to dry gas.
d. Aerosols of water-soluble salts tend to grow in a humidified environment.
ANS: B
The relative rate of particle size change is inversely proportional to the size of a particle, so the small particles grow or shrink faster than larger particles.
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