Chemistry - States of matter
States of matter
Most substances occur in three forms or states of matter: solid, liquid
To understand why solids, liquids and gases behave differently or have
different physical properties physicists in the 19th century developed the
kinetic theory of matter.
The different properties these states possess can be explained by the main
ideas summarised in the table below:
KINETIC THEORY OF MATTER
- Matter is made up of tiny particles.
- Particles constantly move.
- Particles are attracted to surrounding particles.
- Particles within a substance are the same.
- An increase in temperature increases particle movement.
- Spaces exist between particles.
Water can be a liquid, solid (ice) or gas (steam) depending upon the
conditions to which it is exposed.
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