Question
A researcher is trying to grow a single crystal from a supersaturated solution of bulk concentration C bulk . In her first experiment, the radius
A researcher is trying to grow a single crystal from a supersaturated solution of bulk concentration Cbulk.
In her first experiment, the radius of the seed crystal used was 3.2x10-8m.
In her second experiment, the radius of the seed was 2.16x10-8m.
Let be a constant, a = 2/RT, determined by the surface energy of the crystal , the molar volume and the product of the ideal gas constant and the absolute temperature RT. Let C be the equilibrium solubility over a crystal with a radius of curvature r = .
We are given the following: C=1.0x10-5 mol/L
=1.0x10-8m
Cbulk=1.5x10-5 mol/L =1.5C
In which case did the seed grow? Provide a description of your analysis along with the equations you used. Explain in a few sentences.
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