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Unformatted text preview: Chem 116, Lecture 5 Class Notes [HT] iClicker Question: Which answer represents a list in order of increasing deviation from ideal gas behavior? **Key points of Deviation from Ideal Gas Behavior** - The greater the deviation the less ideal the gas is. - The deviation from ideal behavior is large at high pressure. - Low pressure = more ideal (less deviation) - As temperature increases the deviation from ideal behavior decreases. - As temperature decreases the deviation increases. (Maximum deviation near the temperature at which the gas becomes a liquid (at point of phase change known as the critical point). - Ideal gas particles occupy very little space and have no attraction forces. - Van der Waals equation used to predict gas behavior: P = (nRT/ V - nb) (n 2 a/ V 2 ) A) a. N 2 at 25 o C and 1 atm, b. N 2 at 25 o C and 1 atm, c. N 2 at 25 o C and 4 atm Note: a b: higher temperature, molecules moving faster so volume increasing....
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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.
- Fall '08