Amorphous Solids Characteristics
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Questions and Answers

What is the defining characteristic of amorphous solids?

  • Long-range order of atoms
  • Regular arrangement of atoms
  • Definite shape or geometry
  • Random arrangement of atoms (correct)
  • Which type of solid has short-range order but not long-range order?

  • Polycrystalline solids
  • Crystalline solids
  • Amorphous solids (correct)
  • Liquid state
  • Why are amorphous solids also known as Pseudo solids or Super cooled Liquids?

  • They exhibit long-range order
  • They have a defined melting point
  • They form a crystalline structure
  • They have the ability to flow (correct)
  • In which type of solid do properties measured in all directions yield the same results?

    <p>Amorphous solids</p> Signup and view all the answers

    Why don't amorphous solids exhibit a sharp melting point?

    <p>Irregular packing of constituent particles</p> Signup and view all the answers

    What is the shape of broken constituent particles when an amorphous solid is cut?

    <p>Irregular shape</p> Signup and view all the answers

    What is the main reason for amorphous solids to be unsymmetrical in nature?

    <p>Irregular packing of atoms and molecules</p> Signup and view all the answers

    Why do amorphous solids not have a fixed heat of fusion?

    <p>Absence of sharp melting point</p> Signup and view all the answers

    Which one of the following is NOT an example of an amorphous solid?

    <p>Potassium nitrate</p> Signup and view all the answers

    What is the main difference between crystalline and amorphous solids?

    <p>Amorphous solids have long-range order, while crystalline solids have short-range order.</p> Signup and view all the answers

    In which type of solid are the atoms arranged symmetrically?

    <p>Crystalline solids</p> Signup and view all the answers

    What type of solid is considered a true solid according to the text?

    <p>Crystalline solid</p> Signup and view all the answers

    What is another name for Crystalline Solids?

    <p>True Solids</p> Signup and view all the answers

    When a crystal solid is cut with a knife, what type of surface is obtained?

    <p>Flat and smooth</p> Signup and view all the answers

    What term describes the nature of crystalline solids having different properties in different directions?

    <p>Anisotropic</p> Signup and view all the answers

    What is the key characteristic of Polycrystalline materials?

    <p>Made up of small single crystals</p> Signup and view all the answers

    How are the grains in Polycrystalline materials separated?

    <p>By grain boundaries</p> Signup and view all the answers

    Which term describes solids where constituent particles are arranged randomly?

    <p>Amorphous Solids</p> Signup and view all the answers

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