UNIT 3.5 KINETIC MOLECULAR THEORY
Chemistry is the study of matter and interactions. Chemistry overlaps with many other sciences.
Below is the contents for this sub unit.
KINETIC MOLECULAR THEORY
Kinetic Molecular Theory (KMT) is a model that relates properties of gas to motion of the particles. There are 3 parts.
1. The KMT theory assumes the size of a particle is negligibly small and therefore has essentially no volume.
2. The average kinetic energy of a particle is proportional to the temperature in Kelvin.
3. The collision of one particle with another (or with the wall) is elastic. This assumes no loss of energy.
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Maxwell-Boltzmann distribution describes the distribution of kinetic energies of particles at a given temperature. See picture above. The average speed is proportional to the temperature. As the temperature decreases, the curve moves to the left.
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The kinetic energy is calculated by:
KE = 1/2 x m x v^2
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