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Phase Changes

Phase changes are essential physical changes where the molecular structure remains unchanged while energy levels fluctuate. This process includes transitions such as freezing (liquid to solid), melting (solid to liquid), evaporation (liquid to gas), and more. Each transformation involves a specific change in energy as the state of matter alters. For example, freezing occurs when energy is released, and melting involves energy absorption. This overview explores the energy dynamics of each phase transition, highlighting the importance of these physical changes in our understanding of matter.

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Phase Changes

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  1. Phase Changes All phase changes are physical changes, because the molecules do not change. All of these changes have changes in energy.

  2. freezing • This moves from _____________________ state to _______________________ state. • The energy ____________________________________

  3. melting • This moves from _____________________ state to _______________________ state. • The energy ____________________________________

  4. evaporation • This moves from _____________________ state to _______________________ state. • The energy ____________________________________

  5. vaporization • This moves from _____________________ state to _______________________ state. • The energy ____________________________________

  6. condensation • This moves from _____________________ state to _______________________ state. • The energy ____________________________________

  7. sublimation • This moves from _____________________ state to _______________________ state. • The energy ____________________________________

  8. deposition • This moves from _____________________ state to _______________________ state. • The energy ____________________________________

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