Che 131 Notes Ch. 10

Che 131 Notes Ch. 10 - Che 131 Notes Chapter 10: Gases and...

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Che 131 Notes Chapter 10: Gases and the Atmosphere Lecture 24: Gases, Pressure, and the Ideal Gas Laws Reading: 10.1-10.6 I. 10.1 The Atmosphere 1. troposphere a. atmosphere from the surface to about 10 km altitude b. most violent mixing of air, biggest variations in moisture content and temp c. about 75% of the mass of the atmosphere 2. stratosphere a. just above troposphere, about 12 to 50 km b. extremely low pressures c. little mixing with the troposphere d. about 24% of the mass of the atmosphere II. 10.2 Properties of Gases A. Properties all gases have in common 1. can be compressed 2. exert pressure on whatever surrounds them a. i. Force = mass × acceleration ii. 1 N/m 2 = 1 pascal (Pa) b. 1 atm = 101.325 kPa i. = 760 torr = 760 mm Hg 3. expand into whatever volume is available 4. mix completely with one another a. once mixed, they do not separate spontaneously 5. described in terms a. temperature b. pressure c. volume occupied d. amount (number of moles) of gas present III. 10.3 Kinetic-Molecular Theory
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Che 131 Notes Ch. 10 - Che 131 Notes Chapter 10: Gases and...

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