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2 changes in state
 

2 changes in state

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    2 changes in state 2 changes in state Presentation Transcript

    • Changes in State
    • Changes in State
      • 3 Ways State of Matter Changes
      • -Evaporation
      • -Sublimation
      • -Condensation
    • Evaporation
      • When liquid changes to a gas when the temperature is above the boiling point
      • 100 °C, 212°F or 373 K
    • Evaporation Pictures
    • Sublimation
      • When a solid changes directly to a gas without going through the liquid state.
    • Sublimation Pictures
    • Condensation
      • When a gas changes to a liquid when cooled to or below the boiling point.
    • Condensation Pictures
    • Heat/Energy
      • Joules- measurement of energy (like calories).
      • 4.184 calories= 1 Joule
      • 1000 Joules= 1 kJ (kiloJoule)
    • Heat of Fusion
      • Amount of energy needed to change from a solid to a liquid. The heat of fusion for water is 334 kJ/kg.
    • Heat of fusion
    • Heat of Vaporization
      • Amount of energy needed to change from liquid to a gas. The heat of vaporization of water is 2260 kJ/kg.
    • Which requires less energy?
      • Water going from a solid to a liquid.
      • OR
      • Water going from a liquid to a gas.