Which of the Following Statements Is(are)true for Precipitate Particle Size

question 9

Multiple Choice

Which of the following statements is(are) true for precipitate particle size?
I Particle size must be large enough to not clog or pass through a filter.
II Particle size is controlled by precipitation conditions.
III Thermodynamics favors larger crystals because the surface atoms have higher energy than internal atoms and the fraction of atoms on the surface is smaller for larger crystals than smaller crystals.
IV Ostwald ripening is the process where smaller particles re-dissolve and larger crystals grow.

• A)III only
• B)I,II,and IV
• C)II and IV
• D)I,II,III,and IV
• E)II,III,and IV

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