# Kinetic Model of Matter

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Last updated 6 years ago

Discipline:
Science
Subject:
Physics

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Particles in Solid

Particles in Liquid

Particles in Gas

The particles in a solid are arranged together closely in a regular pattern. The particles can only vibrate about in their fixed position. There is strong attractive force in between the particles, holding them in fixed position. Solids expand when heated because the particles will gain more energy and vibrate faster. This made there more space in between particles and make it look like it expand. Solids cannot be compressed because there is too less space in between the particles to be compressed. Solids have a fixed shape and volume because the strong attractive forces don't let the particles leave their positionsThe particles in a liquid are arranged in an irregular manner and quite close together. Liquids cannot be compressed because there is too less space in between the particles to be compressed. The particles can move around. Liquids don't have a fixed shape and can flow because there is strong attractive forces in between particles but not strong enough to hold the particles in fixed position, so they move throughout the liquid and slide past each other. Liquids have a fixed volume because the attractive forces in between the particles make there less space in between the particles and don't let the spacing in between the particles increase a lot. Liquids expand a little bit when heated because the particles will move more vigurously, making there more space in between the particles.The particles in a gas are arranged far apart in an irregular pattern. Gas can be compressed because the particles are far enough from each other to be compressed. The particles move about randomly, at high speed, colliding with the other particles and walls of the container. Gas can fill up a container completely because there is less to no attractive force in between the particles so they can move around freely