Phases

Phases
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In this webinar, we will review the two main diagrams of phase changes and thermodynamics.  These are phase diagrams (solid, liquid, gas) and heating curves.  Phase diagrams can give us useful info about densities, boiling and melting curves, and can also help explain colligative properties.  Heating curves show quantitatively how phases can change.  We use heating curves in calorimetry.

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At a glance

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Essential skills

  • Read a phase diagram

  • Read and calculate with a heating/cooling curve

  • Visualize colligative properties on phase diagrams through freezing point depression and boiling point elevation

assessment

Knowledge Fundamentals

  • Fundamental phases of matter

  • Phase diagrams

  • Phase transitions

  • Heating and cooling curves

  • Connection between phases and colligative properties

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On the MCAT

  • The test knows that you have studied basic phase diagrams, so the test will complicate these diagrams for you. Remember to apply the same basic principles!

  • Phases have overlaps with colligative properties and heating/cooling curves, both of which can be calculation heavy

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