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The Particulate Nature of Matter - Coggle Diagram
The Particulate Nature of Matter
Solids
Orderly arrangement
Very strong forces of attraction
Packed very closely together
Unable to move freely
Vibrate and rotate about their fixed shape
Liquid
Strong forces of attraction
Able to move about freely
Disorderly arrangement
Slide past one another
Packed closely together
Gas
Very weak forces of attraction
Able to move about freely
Disorderly arrangent
Move rapidly in all directions
Far apart from one another
Expansion
When matter is heated, the volume of the matter increase.
The thermal energy gained by the particles is converted to internal kinetic energy.
This caused the particles to move faster as they have greater kinetic energy, resulting in the
The particles move further apart from one another.
This process is called expansion.
Contraction
When matter is cooled, the volume of matter decreases.
The particles lose thermal energy.
This caused the particles to move with lesser kinetic energy, resulting in the spaces between the particles to decrease.
The particles move closer to one another.
This process is called contraction.
Mass of matter does not change during expansion and contraction.
• Although the volume of the matter changes, the size and amount of the particles of matter do not change.