Class06

Class06 - Chemistry 83 Formation of the solar system and...

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Chemistry 83 Class06 1 Formation of the solar system and description of planet earth Cloud of dust and gas Gravitational Contraction Rotation and disk formation Break up into protosun orbited by protoplanets Solar fusion begins and drives H and He outward Thompson, Turk,”Earth Science and Environment”,Saunders,New York, 1995, 14 How did our solar system form ( one hypothesis)?
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Chemistry 83 Class06 2 Buell/Girard, “Chemistry”, Prentice Hall, New Jersey, 1994, p. 28 Terrestrial Planets (rocky) Giant Planets (gaseous) The location of Pluto is unusual since it is not with the other terrestrial planets near the sun. What is unusual about Pluto’s location? rocky http://www.meta-synthesis.com/webbook/32_n-synth/nucleosynthesis.html The sun is very large compared to all the planets around it The gaseous planets are large compared to the rocky planets Pluto is the smallest of the rocky planets What is unusual about Pluto’s size?
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Chemistry 83 Class06 3 Buell/Girard, “Chemistry”, Prentice Hall, New Jersey, 1994, p. 28 Pluto orbits in a different plane from the rest of the planets. Pluto was demoted to status of dwarf planet by International Astronomical Union on 8/24/06. What is unusual about Pluto’s orbit around the sun? Buell/Girard, “Chemistry”, Prentice Hall, New Jersey, 1994, p. 31 What is the structure of planet earth? Earth consists of layers with lower boundaries: Crust ~25 miles Mantle ~1800 miles Outer core ~3200 miles Inner core ~4000 miles
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Chemistry 83 Class06 4 Moeller, “Chemistry”,Academic Press, New York, 1984, 929 Layers suggest that earth melted after it is was formed and its molten components differentiated, i.e., gravity formed layers based on density How can earth’s structure be explained? What layer of earth contains most of the iron metal?
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This note was uploaded on 10/19/2011 for the course CHEM 83 taught by Professor Bonk,j during the Fall '08 term at Duke.

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Class06 - Chemistry 83 Formation of the solar system and...

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