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Simple Kinetic Molecular Model of Matter States of Matter
Objectives <ul><li>By the end of the chapter, you should be able to – </li></ul><ul><li>compare the properties of solids, ...
States of Matter 1. No definite volume or shape 2. Low Density  3. Compressible 4. Able to flow Gas 1. Has definite volume...
Molecular Model High speed, independent motion in random manner Free to move about between clusters but confined within th...
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Kinetic Theory of Matter 1 - States of Matter

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Kinetic Theory of Matter 1 - States of Matter

  1. 1. Simple Kinetic Molecular Model of Matter States of Matter
  2. 2. Objectives <ul><li>By the end of the chapter, you should be able to – </li></ul><ul><li>compare the properties of solids, liquids and gases </li></ul><ul><li>infer from Brownian motion experiment the evidence for the movement of molecules </li></ul><ul><li>describe qualitatively the molecular structure of solids, liquids and gases, relating their properties to the forces and distances between molecules and to the motion of the molecules </li></ul>
  3. 3. States of Matter 1. No definite volume or shape 2. Low Density 3. Compressible 4. Able to flow Gas 1. Has definite volume but no definite shape 2. High Density 3. Incompressible 4. Able to flow Liquid 1. Has definite volume and shape 2. Normally hard and rigid 3. Large force needed to change shape 4. High density 5. Incompressible Solid Properties States of Matter
  4. 4. Molecular Model High speed, independent motion in random manner Free to move about between clusters but confined within the containing vessel due to attractive forces between them Vibrate about fixed position, held together by strong intermolecular forces Motion About 10 -8 m Molecules are very far apart, and therefore free to take up any space which is available to them About 10 -9 m Molecules are slightly further apart than in a solid, and take the shape of the container which holds the liquid About 10 -9 m Molecules are closely packed, and therefore gives the solid a rigid shape Intermolecular Distance Negligible Very strong but weaker than that in solid Very Strong Intermolecular Forces Gas Liquid Solid Properties

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