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Kinetic Molecular Theory Return to Chemistry Index Page
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| The Kinetic Molecular Theory is a theory that states that
all particles of matter regardless of state (Solid, Liquid or Gas) are in
motion. The rate of motion is temperature dependent. The higher the
temperature the greater the kinetic energy and vice versa the lower the
temperature the less kinetic energy. The formula for kinetic energy is
KE=1/2MV2 There are five conditions to consider with the Kinetic Molecular Theory when considering ideal gasses: 1. All collisions between gasses particles are elastic in that when they collide their is not net lost of energy or energy transfer between particles. 2. There are no forces of attractions or repulsion when gasses particles pass by each other. 3. Kinetic energy of a gas particle is temperature dependent. 4. Gas particles are always in fast random motion that in that they are constantly moving. 5. Gas particles are numerous and they are far apart from each other according to their size. In reality, no gas truly behaves as an idea gas in that in real gasses there is some lost of kinetic motion when collisions occur and that gas particles exhibit forces of attraction as they interact with each other. |
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