General Properties of Liquids


 
 
Concept Explanation
 

General Properties of Liquids

The Liquid State:  In liquids, the intermolecular force of attraction being weak, the particles of matter are less strongly held together. The intermolecular space, on the other hand is large. Therefore, the particles have more freedom of movement. But the intermolecular force is not so weak as to allow the particles to leave the surface of a liquid.

General Properties of Solids:

  • Shape and Volume: A liquid has no definite shape and volume. A liquid takes the shape of the vessel in which it is kept. This is because particles of a liquid can slip over one another and finally settle down to take the shape of vessel. Since the particles cannot come closer to or go farther away from one another, the volume of the liquid does not change.
  • Density: the density of liquids is lower than that of solids.
  • Compressibility: liquids can be compressed only to a small extend, that is, they are almost incompressible. However, they have a slightly higher compressibility than solids. This is because the intermolecular space in liquids is somewhat greater than that in solids.
  • Melting point and boiling point:  The melting and boiling points of liquids are generally lower as compared to those of solids.
  • Fluidity: liquid has the property to flow. If water is spilled on the floor, it begins to spread out and its shape changes. But, its volume remains the same. A liquid can flow because its particles have higher kinetic energy than that of solids
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    Sample Questions
    (More Questions for each concept available in Login)
    Question : 1

    Which of the following describes the liquid phase?

    Right Option : C
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    Question : 2

    Which of the following describes the liquid phase ?

    Right Option : C
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    Question : 3

    Which of the following are correct :

    (a) In liquid state of the matter, particles are less tightly packed as compared to solids.

    (b) Liquids take the shape of the container in which they are kept.

    (c) Liquids are difficult to compress as particles have less space between them.

    Right Option : D
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