CHEM 1360 CHS 6-7

CHEM 1360 CHS 6-7 - The Composition of the Atmosphere The...

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The Composition of the Atmosphere The Composition of the Atmosphere Dry Atmosphere at Sea Level (% by Volume) Dry Atmosphere at Sea Level (% by Volume) Nitrogen 78.084 Oxygen 20.948 Argon 0.934 Carbon dioxide 0.033 (increasing yearly) Neon 0.00182 Hydrogen 0.0010 Helium0.0052 Methane 0.0002* Krypton 0.0001 Xenon 0.000008 Carbon monoxide, ozone, ammonia, nitrogen dioxide, sulfur dioxide <0.00001* * = variable depending upon pollution Water content in the atmosphere is variable in actual contexts, ranging to over 5% in hot steamy climates to <<1% in dry arid environments.
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760 mm Hg Pressure Pressure Atmospheric pressure is measured with a barometer If a tube is inserted into a container of mercury open to the atmosphere, the mercury will rise 760 mm up the tube (at sea level). (at sea level)
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The Gas Laws The Gas Laws The Pressures-Volume Relationship: Boyle’s Law The Pressures-Volume Relationship: Boyle’s Law A plot of V versus P is a hyperbola . Similarly, a plot of V versus 1/P must be a
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This note was uploaded on 04/12/2011 for the course CHEM 1420 taught by Professor Acree during the Spring '08 term at North Texas.

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CHEM 1360 CHS 6-7 - The Composition of the Atmosphere The...

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