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2physicalstates - Atomic/Molecular View All matter is made...

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    PHYSICAL STATES OF  MATTER Glenn V. Lo Department of Physical Sciences Nicholls State University
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    Solid, Liquid or Gas?  Ice cube Air Rock Steam Water Helium Wine Gasoline Sugar Chalk We intuitively know the distinction.
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    Operational Definitions Physical  State Volume Shape Solid Fixed Fixed Liquid Fixed Follows container Gas Fills up  container Follows container Movies:  http://www.chemistry.ohio-state.edu/betha/nealGasLaw/frb1.2.html Physical States of Water: http://www.nyu.edu/pages/mathmol/textbook/slg.html
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    Phase Changes Phase change = change in physical state Melting: solid to liquid Freezing: liquid to solid Vaporization: liquid to gas Condensation: gas to liquid Sublimation: solid to gas (direct) Melting, vaporization, and sublimation  require absorption of heat
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Unformatted text preview: Atomic/Molecular View All matter is made up of little tiny particles called atoms. Groups of two or more atoms bound together are called molecules. Much of what you see around us can be explained with the notion that atoms and molecules are always moving. http://www.chemistry.ohio-state.edu/betha/nealGasLaw http://titanium.fullerton.edu/shock/PHASED.htm Atomic/Molecular View Increase temperature: faster molecular motion Solid or liquid changing to gas: spreading out of molecules due to increased motion, allows molecules to overcome forces of attraction Test Yourself Third Grade Quiz: http://www.1001-periodic-table-quiz-ques...
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