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Beautiful Chemistry: Beautiful Structures: Gas and Liquid

For Students 9th - 10th
In Beautiful Chemistry, we talk about crystals, quasicrystals and glasses, which are all solids. Here, we see the molecular structure of gases and liquids.
Handout
University of Waterloo (Canada)

The University of Waterloo: The Heating Curve

For Students 9th - 10th
The heat of vaporization along with several other thermal properties are explained. Sample problems are given. Illustrations.