Unveiling the Mysteries of Glass
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Questions and Answers

Which term describes the transition in amorphous materials from a hard and brittle state to a viscous or rubbery state as temperature increases?

  • Glass transition (correct)
  • Melting
  • Crystallization
  • Vitrification

    • What is the name for an amorphous solid that exhibits a glass transition?

  • Vitrification
  • Glass (correct)
  • Crystallization
  • Melting

    • What is the glass-transition temperature (Tg) of a material?

  • The temperature at which a glass transitions into a crystalline state
  • The temperature at which a glass transitions into a gas state
  • The temperature at which a glass transitions into a rubbery state (correct)
  • The temperature at which a glass transitions into a liquid state

    • Is the glass-transition temperature (Tg) always higher or lower than the melting temperature (Tm) of the crystalline state of the material?

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

    What is the reverse transition of the glass transition called?

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

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