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Question

Explain the term solids


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Solution

Solids:

  • Solid can be defined as one of the fundamental states of matter in which it has a definite shape, size, and ordered structure.
  • Solids have definite boundaries and the constituent particles have fixed positions and oscillate about their mean positions.
  • In solids, particles are tightly packed and intermolecular forces are the strongest.
  • They are rigid and have negligible compressibility.
  • The particles are arranged in regular order.
  • Solids can be classified as crystalline or amorphous on the basis of the nature of order present in the arrangement of their constituent particle.
  • A crystalline solid has a long-range order which means that there is a regular pattern of arrangement of particles that repeats itself periodically over the entire crystal.
  • Examples of crystalline solids include ice, Sodium chloride, and diamonds.
  • An amorphous solid consists of particles of irregular shape and the arrangement of constituent particles (atoms, molecules, or ions) in such a solid has only short-range order in such arrangements, a regular and periodical repeating pattern is observed over short distances only.
  • Examples of amorphous solids include metallic glasses, gels, thin-film lubricants, and certain polymers.

Therefore, solids are the fundamental state of matter having a fixed shape and size


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