Chapter Ten - ChapterTen PhysicalCharacteristicsofGases

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Chapter Ten Physical Characteristics of Gases Kinetic Molecular Theory of Gases- based on idea that particles are always in motion In the KMTG, assumptions made are: 1. Gases consist of large numbers of tiny particles that are far apart relative to their size 2. Gas/gas and gas/container collisions are elastic 3. Particles move in a continuous, rapid and random motion 4. No forces of attraction or repulsion are present 5. Average kinetic energy of gas particles depends on temperature Elastic- there is no net loss of kinetic energy KMTG to explain properties of gases: Expansion- gases will completely fill any container they are in Fluidity- gases flow like liquids Low density- due to gaseous state, volume is 1/1000 of liquid or sold Compressibility- particles are crowded together Diffusion- spontaneous particle mixing by random motion Effusion- gas particles pass through a tiny opening Real gas- gas that does not behave completely according to assumptions of kinetic- molecular  theory Ideal gas- imaginary gas that perfectly fits all assumptions of the kinetic-molecular theory Quantities to describe a gas: volume, temperature, # of particles, pressure
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This note was uploaded on 09/28/2010 for the course CHEM Chemistry taught by Professor Plants during the Spring '10 term at Clear Creek.

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Chapter Ten - ChapterTen PhysicalCharacteristicsofGases

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