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The particle nature of matter states that all matter is made up of tiny, discrete particles such as atoms and molecules.
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What is the particle nature of matter?
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The particle nature of matter states
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that all matter is made up of tiny
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discrete particles such as atoms and
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molecules. Explanation: According to
0:12
this concept, matter is not continuous
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but consists of very small particles
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that are constantly in motion. These
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particles have spaces between them and
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attract one another with forces of
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attraction. The arrangement and movement
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of these particles determine whether a
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substance exists as a solid, liquid or
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gas. Imagine. Imagine a classroom filled
0:35
with students. If they sit very close
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and hardly move, it is like a solid. If
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they can move around but stay close, it
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is like a liquid. If they spread out and
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move freely, it is like a gas. This is
0:50
how particles behave in different states
0:52
of matter. In simple terms, matter is
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made up of tiny particles that are
0:57
always moving. Formula. There is no
1:00
single formula for the particle nature
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of matter, but it is explained by the
1:04
kinetic theory of matter. Key points.
1:07
Matter is made up of atoms and
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molecules. Particles are extremely
1:12
small. There are spaces between
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particles. Particles are always in
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motion. There are forces of attraction
1:19
between particles. Examples: Smell of
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perfume spreading in a room. Dissolving
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sugar and water. Diffusion of gases.
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Evaporation of water. Applications.
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Understanding chemical reactions.
1:33
Explaining changes of state. Industrial
1:35
gas production. Understanding
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respiration. Refrigeration systems.
1:40
Question. How does the spreading of
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perfume in a room support the particle
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nature of matter? Answer. The spreading
1:47
of perfume shows that gas particles move
1:50
randomly and freely filling the
1:52
available space. Solved problem
1:55
question. A drop of ink spreads
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uniformly in a beaker of water without
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stirring. What does this demonstrate?
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Answer. It demonstrates that particles
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of matter are in constant motion and
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there are spaces between them allowing
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diffusion to occur.
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