Gypsum and Plaster Chemistry

Correction: At 10:00, the labels "Anhydrite" and "Gypsum" are swapped.
Video on Gypsum History (0:03): • Gypsum History
Video on Thermodynamic State Variables (1:45, 8:05): • Thermodynamic State Va...
Video on Thermodynamics of Phase Change (8:05): • Thermodynamics of Phas...
Video on Chemical Thermodynamics (8:05): • Chemical Thermodynamics
Keywords: Gypsum, Hemihydrate, Anhydrite, Calcium sulfate, Thermodynamics, Gibbs free energy, Principle of Le Chatelier

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[@freifreiheit1330]

8:48 Exothermic H < 0 Spontaneous G < 0

[@RatedR4Raider]

Easy to understand