9-9-08[lecture3]si

9-9-08[lecture3]si - CHEM 116 IN CLASS NOTES: 09-09-08 (SI)...

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1 CHEM 116 IN CLASS NOTES: 09-09-08 (SI) TOPICS COVERED 1. Kinetic Molecular Theory 2. Graham’s Law of effusion Conclusion from Clicker question 1. The higher the temperature, the faster the particles of a gas move 2. Increase in temperature leads to increase in the speed of the particles. 3. Particles of a particular gas at certain temperature and pressure do have a wide distribution of the speeds of the particles. This is because some particles are fast and others are small and their speeds change all the time. 4. Particles in different gases at the same temperature have different speeds, the heavier the particle the slower it is and the lighter the particle, the faster it is. 5. Average velocity cannot be used to solve for speed, instead Root- mean square (r.m.s) speed should be used. Average Mean Velocity vs. Root Mean Square Velocity (r.m.s) Kinetic Molecular Theory Can use this theory to predict the r.m.s speed of a gas. Kinetic energy only depends on temperature. Measure of the kinetic energy is
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This note was uploaded on 12/02/2011 for the course PHYSICS 235 taught by Professor Staff during the Fall '08 term at Rutgers.

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9-9-08[lecture3]si - CHEM 116 IN CLASS NOTES: 09-09-08 (SI)...

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