HW and CW Keys
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**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
- Ice Melting Blocks CW sheet
- These blocks were used during our activity on 10/21.
Heat of Fusion and Vaporization Calculation Tutorials
- Heat of Fusion: https://www.youtube.com/watch?v=1PsdTHQhwRQ
- Heat of Vaporization: https://www.youtube.com/watch?v=E9bsTOKkiDU
Calorimetry Formula Tutorial Video: https://m.youtube.com/watch?v=L9spPoot3fUPlease watch the above video and take notes on how to calculate the energy that influences a temperature change