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5. Explain the following phenomena we observe in our everyday life, with the help of particle theory: (i) A gas fills the entire vessel in which it is kept. (ii) We can easily move our hand through air, but to do the same in a solid block of wood, we need to learn the special karate skills. (iii) We get the fragrance of the flowers from a bouquet kept in a far-away corner of the room. |
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Answer» (i) The force of attraction between particles of gas is negligible. Because of this, particles of gas move in all directions. Thus, a gas fills the VESSEL completely in which it is kept.(ii) We can move our hands freely in air as its particles have a large inter molecular SPACE. Wherein wood, the particles are tightly PACKED together and doesn’t allow free movement unlike air. Thus, we need special karate training to use a certain right amount of force.(iii) We are able to sense the fragrance of a flower bouquet EVEN from a far corner as, its scent TRAVELS in the thin particle of air and through our nose. Explanation: |
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