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Classifications of Solids: Crystalline & Amorphous Video Lecture | Physical Chemistry for NEET
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FAQs on Classifications of Solids: Crystalline & Amorphous Video Lecture - Physical Chemistry for NEET
| 1. What is the difference between crystalline and amorphous solids? |  |
Ans. Crystalline solids have a highly ordered arrangement of atoms or molecules, resulting in a regular repeating pattern throughout the entire solid. On the other hand, amorphous solids lack a long-range order and have a more disordered atomic arrangement.
| 2. How are the properties of crystalline and amorphous solids different? | |
Ans. Crystalline solids have well-defined melting points and exhibit distinct cleavage planes due to their ordered structure. They also tend to be more rigid and have higher densities compared to amorphous solids. Amorphous solids, on the other hand, have a lower melting point range and lack cleavage planes. They are typically less rigid and have lower densities.
| 3. What are some examples of crystalline and amorphous solids? | |
Ans. Examples of crystalline solids include salt, diamond, quartz, and metals such as copper and iron. Amorphous solids include glass, rubber, plastic, and some types of gels.
| 4. How are the atomic arrangements different in crystalline and amorphous solids? | |
Ans. Crystalline solids have a repeating pattern of atoms or molecules called a lattice structure, which extends throughout the entire solid. In contrast, amorphous solids have a more random arrangement of atoms or molecules without a well-defined pattern.
| 5. Can a substance exist in both crystalline and amorphous forms? | |
Ans. Yes, some substances can exist in both crystalline and amorphous forms, depending on the conditions of formation. For example, carbon can exist as both diamond (crystalline) and graphite (amorphous). The different forms have distinct properties due to their atomic arrangements.
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Nov 15, 2024 Last updated |
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