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Changes of State Section 10.4

After reading Section 10.4, you should know: How to interpret a phase diagram What the triple point is What sublimation is. Changes of State Section 10.4. States of Matter. Solid. Liquid. Gas. Has definite shape and volume Molecules are tightly packed

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Changes of State Section 10.4

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  1. After reading Section 10.4, you should know: • How to interpret a phase diagram • What the triple point is • What sublimation is Changes of StateSection 10.4

  2. States of Matter Solid Liquid Gas • Has definite shape and volume • Molecules are tightly packed • Most are crystalline and have a repetitive structure • Has no definite shape, but has definite volume • Molecules are less tightly packed and can slide past each other • Molecules have a small attraction toward each other • Has no definite shape or volume • Molecules are free to move about • Molecules fill the container they are in http://www.harcourtschool.com/activity/states_of_matter/

  3. Phase Diagram for water Normal boiling point Normal melting point Triple Point – the only set of conditions at which all 3 states of matter exist in equilibrium

  4. Sublimation • The change from a solid directly to a gas without going through the liquid state • Example: Dry Ice

  5. After reading Section 10.4, you should know: • How to interpret a phase diagram • What the triple point is • What sublimation is

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