Notes Presentations

HW and CW Keys

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Videos and Supplementary Materials

  • Example of a Heating Curve for a Substance
    **To analyze as a cooling curve, read the below heating curve in reverse starting at segment E and ending at segment A**
    heating curve
    For any phase change that overcomes intermolecular forces to move the molecules apart, potential energy increases while kinetic energy remains constant. Phase changes that fit this description include: Fusion, vaporization and sublimation.
     
    For any phase change that must require a cooling that allows molecules to move together another and strengthen intermolecular forces, potential energy decreases while kinetic energy remains constant. Phase changes that fit this description include: Solidification, condensation and deposition. 

     

    Ice Melting Blocks Demonstration Video: https://www.youtube.com/watch?v=yvB8Qd02oWk

    Heat of Fusion and Vaporization Calculation Tutorials

    Calorimetry Formula Tutorial Video:  https://m.youtube.com/watch?v=L9spPoot3fU

    Please watch the above video and take notes on how to calculate the energy that influences a temperature change

Extra Practice Problems