Kinetic Particle Theory

by SuperMario
Last updated 5 years ago

Discipline:
Science
Subject:
Chemistry

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Kinetic Particle Theory

The Particulate Model of MatterThe arrangement of particles in a solid is in an orderly manner and particles are packed closely. There is a strong attractive force between the particles. The particles can only vibrate at their fixed position.The arrangement of particles in a liquid is in a random or disorderly manner and particles are packed quite closely. There is quite a strong attractive force between the particles. The particles can only move within limited space and slide past each other.The arrangement of particles in a gas is in a random or disorderly manner. The particles are far apart from each other. There is very less attractive force between the particles. The particles can move freely and randomly at high speed.

Matter is something that occupies space and have mass. Matter exist in 3 states, solid, liquid and gas. The kinetic particle theory states that matter is made up of particles and the particles could be atom, ion or molecules. The particles are in constant and random motion so they possess kinetic energy. This theory can explain certain properties of matter like compression, density, shape and diffusion

Solid and liquid cannot be compressed but gas can because the distance between the particles in a gas is very far apart, unlike solid and liquid where the particles are closely packed together. This made there more space for the gas particles to squeeze closer to each otherSolid have higher density than gas because the solid particles are closely packed together in an orderly manner, so there are more solid particles packed . Gas particles are far apart from each other and is arranged in a disorderly manner, so there are lesser gas particles packed. Thus, solid particles have more particles packed than gas particles so it has higher densityLiquid and gas don't have a fixed shape but solid have because solid particles can only vibrate at a fixed position but liquid and gas can move about so they don't have a fixed shapeGas diffuse faster than liquids and solid cannot diffuse because the gas particles move more freely and randomly at higher speed than liquids, so it can diffuse faster. Solids cannot diffuse because it can only vibrate at it's fixed position so it cannot diffuse.

Heating and Cooling Curve


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