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States of Matter

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    Particles in matter
  •   Study   Slideshow
  • How are particles arranged in solids
    Closely packed with no or less space
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  • How are particles arranged in a liquid
    Particles are not so closely packed and have some space between them.
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  • How are particles arranged in gases
    Particles are loosely packed and have lots of space between them.
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  • Why are the particles so closely packed together in solids?
    The force of attraction between the particles is strong and binds them together.
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  • Why are they loosely packed in gases?
    The force of attraction between the particles is hardly present.
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  • What happens to the particles of solid on heating?
    When a solid is heated, the particles gain energy. This weakens the force of attraction
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  • What happens to the particles of gas on cooling?
    When a gas is cooled, its particles begin to lose energy.
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  • Why does the temperature not rise during the change of state of matter?
    Because the heat energy is taken up to break the force of attraction between the particles
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