test 2 fall 07 - Extra Credit (10 pts) 1. Briefly explain...

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Unformatted text preview: Extra Credit (10 pts) 1. Briefly explain the difference between an amorphous material and a polycrystalline material. A polycrystalline material is composed of grains that are crystalline but which have different orientations. An amorphous material has shortrange order, but lacks longrange order. (A note following the exam. The text talks about water lacking longrange order just before it defines amorphous. We will NOT use amorphous to refer to liquids. Yes, liquids typically lack long range order; BUT, we will use amorphous to refer ONLY to solid materials.) ...
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This note was uploaded on 04/07/2008 for the course CHE 352 taught by Professor Johnschlup during the Fall '03 term at Kansas State University.

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