Earth Materials - Mineral Genesis Pt 2 (Exam 2)

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if a “random” nucleus has a radius larger than r*, the nucleus will (grow/not grow)

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grow

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if a “random” nucleus has a radius smaller than r*, the nucleus will (grow/not grow)

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not grow

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5 Terms

1
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if a “random” nucleus has a radius larger than r*, the nucleus will (grow/not grow)

grow

2
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if a “random” nucleus has a radius smaller than r*, the nucleus will (grow/not grow)

not grow

3
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what is overstepping

deltaG being slightly off of equilibrium; off of temperature=pressure

4
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why is nucleation favored by large degrees of overstepping?

rate of nucleation depends on the amount of overstepping (affinity)

5
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what are 3 ways to achieve overstepping

changing temperature and/or pressure, cooling below freezing curve, supersaturation of a vapor or liquid