Amorphous and Crystalline Solids
Chemistry ⇒ States of Matter
Amorphous and Crystalline Solids starts at 9 and continues till grade 12.
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Define the term 'isotropy' as it relates to solids.
Describe the arrangement of particles in a crystalline solid.
Describe the difference between isotropy and anisotropy with respect to solids.
Describe the difference in the external appearance of crystalline and amorphous solids.
Explain the term 'conchoidal fracture' with respect to amorphous solids.
Explain why amorphous solids are sometimes called supercooled liquids.
Explain why amorphous solids do not have a definite heat of fusion.
Explain why crystalline solids are anisotropic.
Explain why glass is considered an amorphous solid.
Name two examples each of crystalline and amorphous solids.
State one difference between crystalline and amorphous solids based on their melting behavior.
State one use of amorphous solids in daily life.
A scientist is analyzing two solid samples. Sample A shows a sharp melting point and a regular geometric shape, while Sample B softens gradually over a range of temperatures and has an irregular shape. Based on these observations, classify each sample as crystalline or amorphous and justify your answer.
Compare and contrast the electrical conductivity of amorphous and crystalline solids, providing examples where appropriate.
Describe the process and significance of annealing in the context of amorphous solids.
Explain how X-ray diffraction can be used to distinguish between amorphous and crystalline solids.
Explain why the mechanical properties (such as hardness and cleavage) of crystalline solids differ from those of amorphous solids.
